The nervous system consists of the central nervous system (CNS) containing the brain and spinal cord, and the peripheral nervous system (PNS). The CNS receives sensory data from the PNS and controls the body, while the PNS is a network of nerves throughout the body. Neurons are the basic functional units and come in sensory, motor, and interneuron types. The brain is divided into the cerebrum, cerebellum, diencephalon, and brainstem. The spinal cord connects the brain to the rest of the body. The autonomic nervous system controls involuntary functions and is divided into sympathetic and parasympathetic divisions.
The nervous system controls and coordinates the body's activities and consists of the central nervous system and the peripheral nervous system. The central nervous system is comprised of the brain and spinal cord. The peripheral nervous system consists of nerves that connect to the central nervous system and transmit signals between different parts of the body. The nervous system has sensory neurons that receive stimuli and motor neurons that send signals to muscles and glands to respond.
The nervous system is the chief controlling and coordinating system of the body. It consists of the brain, spinal cord, sensory organs, and nerves. The nervous system controls and regulates all voluntary and involuntary activities. It has three main functions: sensory function to collect information, integration to process sensory input and make decisions, and motor function to send responses to muscles and glands. The central nervous system includes the brain and spinal cord, which interpret sensory information. The peripheral nervous system includes nerves outside the brain and spinal cord that connect to sensory receptors.
The nervous system is the body's control and communication system. It is made up of the central nervous system, which includes the brain and spinal cord, and the peripheral nervous system. The central nervous system processes information and sends signals through nerves to different parts of the body and back. It controls vital functions and processes thoughts, emotions, and memories. The peripheral nervous system branches out from the central nervous system through cranial and spinal nerves to the rest of the body. The autonomic nervous system controls involuntary body processes like breathing and digestion through the sympathetic and parasympathetic systems.
The nervous system is the body's communication network that collects information and directs responses. It has two main parts - the central nervous system consisting of the brain and spinal cord, and the peripheral nervous system of nerves extending throughout the body. Neurons are the basic cells of the nervous system that transmit electrochemical signals called impulses to coordinate bodily functions and reactions.
The central nervous system (CNS) is the primary control center of the body and is composed of the brain and spinal cord. The CNS processes and guides movement and sends/receives sensations throughout the body via the peripheral nervous system (PNS). The PNS connects the CNS to sensory receptors and allows it to pick up external information and control skeletal muscles. Together the CNS and PNS work to regulate, control, and coordinate all neural impulses, thoughts, and feelings in the body.
The nervous system is made up of the brain, spinal cord, and network of nerves. It processes information as the body's internal communication system. Neurons are the basic unit, carrying electrical signals throughout the body. The central nervous system includes the brain and spinal cord, which process sensory information. The peripheral nervous system connects to the central nervous system and controls involuntary functions. It is divided into the somatic and autonomic systems. The autonomic system further divides into the sympathetic and parasympathetic systems which work in opposition to activate the fight or flight response or return the body to rest.
Human nervous system for allied health students.pptdrn00r
油
The document discusses the structure and function of the nervous system. It describes the central nervous system as consisting of the brain and spinal cord which act as the body's control center. The peripheral nervous system is made up of nerves connecting the central nervous system to the rest of the body. Within the central nervous system, neurons transmit electrical signals through the body to coordinate its activities. The three main sections of the brain are the cerebrum, cerebellum and brainstem, each with distinct roles in movement, coordination, memory and other cognitive functions.
Analysion concerning nervous system .pptxmwessapeter3
油
Peter is a student at the Health Care and Paramedic Science school studying radiology and imaging technology from 2024-2027. The document provides an overview of the nervous system including its main components and functions. It describes the central nervous system consisting of the brain and spinal cord which process sensory information and coordinate bodily functions. The peripheral nervous system includes nerves throughout the body which transmit signals between the central nervous system and other parts of the body. Common disorders that can affect the nervous system are also listed such as Alzheimer's disease, cancer, cerebral palsy and epilepsy.
The nervous system is made up of neurons that regulate bodily processes. It has two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord. The spinal cord carries sensory information to the brain and motor commands from the brain. Damage to the CNS was once thought to be permanent but scientists have found ways to implant nerve fibers to allow regeneration. The PNS connects the CNS to organs and muscles. It has two divisions - the somatic nervous system controls voluntary muscles, while the autonomic nervous system regulates involuntary functions like breathing. The autonomic nervous system has sympathetic and parasympathetic divisions that work in opposition to arouse and
The nervous system coordinates and controls body functions by receiving sensory input, processing information, and ordering responses. It consists of the central nervous system (CNS) and peripheral nervous system (PNS). The CNS includes the brain and spinal cord and processes sensory information before sending motor commands. The brain coordinates most activities and is divided into sections responsible for different functions. The spinal cord relays impulses between the brain and body. The PNS includes cranial and spinal nerves and has autonomic and somatic divisions.
The document summarizes key aspects of the nervous system, including its central and peripheral components. The central nervous system includes the brain and spinal cord, which process and respond to messages from the peripheral nervous system. The peripheral nervous system connects all body parts to the central nervous system using neurons, sensory neurons that gather information and motor neurons that send signals. The nervous system also has somatic and autonomic divisions, with the somatic controlling voluntary movement and the autonomic regulating involuntary functions like digestion. The brain acts as the main control center and is comprised of the cerebrum, cerebellum and medulla, each with distinct roles in thinking, movement and involuntary processes.
The nervous system is divided into the central nervous system and the peripheral nervous system. The central nervous system includes the brain and spinal cord, and controls and coordinates body functions. The peripheral nervous system connects the central nervous system to the rest of the body using nerves and contains sensory neurons that carry messages to the central nervous system and motor neurons that carry messages away from it. Neurons are the basic functional units of the nervous system and communicate with each other via electrical and chemical signals to control bodily functions like movement and organ activity.
The right half of the brain controls the left half of the body. This means that only left handed people are in their right mind.
Made up of brain and spinal cordActs as bodys control center, coordinates bodys activitiesImpulses travel through the neurons in your body to reach the brainCentral Nervous System is yellow in this diagram.
Made up of all the nerves that carry messages to and from the central nervous system.Similar to telephone wires that connect all of our houses in the communityCentral Nervous System and Peripheral Nervous System work together to make rapid changes in your body in response to stimuli.Peripheral Nervous System is green in this diagram.
Somatic Nervous SystemRelay information between skin, skeletal muscles and central nervous systemYou consciously control this pathway by deciding whether or not to move muscles (except reflexes)Reflexes: Automatic response to stimulusAutonomic Nervous SystemRelay information from central nervous system to organsInvoluntary: You do not consciously control theseSympathetic Nervous System: controls in times of stress, such as the flight or fight responseParasympathetic Nervous System: controls body in times of rest
The nervous system is responsible for coordinating all body activity and is divided into the central nervous system and peripheral nervous system. The central nervous system consists of the brain and spinal cord and controls everything in the body. It is made up of over 10 billion nerves and is divided into the cerebrum, cerebellum, and brain stem, each controlling different functions like thinking, balance, and heartbeat. The peripheral nervous system is made of nerves and sense organs and carries messages between the central nervous system and the rest of the body.
The document discusses the structure and function of the nervous system. It describes how the central nervous system, made up of the brain and spinal cord, coordinates the body's activities through the neurons. The peripheral nervous system connects to and relays messages from the central nervous system through sensory neurons, motor neurons, and interneurons. The three main sections of the brain - the cerebrum, cerebellum, and brainstem - each have distinct roles in controlling voluntary movement, balance, and involuntary functions. Major nervous system diseases and their prevalence and economic costs are also listed.
The nervous system has three main functions: receiving information, interpreting information, and making the body respond. It is divided into the central nervous system (brain and spinal cord) and peripheral nervous system (nerves throughout the body). The peripheral nervous system is further divided into the somatic nervous system (controls voluntary muscles and skin sensation) and autonomic nervous system (controls involuntary functions like heart rate through the sympathetic and parasympathetic divisions). Neurons are the basic functional units and transmit signals through electrical and chemical processes. Common nervous system ailments include multiple sclerosis, polio, brain tumors, meningitis, rabies, stroke, and encephalitis.
The peripheral nervous system is made up of nerves that transfer information through the body using electrical and chemical signals. Neurons are the basic building blocks and functional units of the nervous system. They are cells designed to quickly transmit information. Sensory neurons collect information from the senses and send it to the brain. The brain then sends signals to motor neurons which transmit messages to the body's locomotor system. Without a peripheral nervous system, the brain would not receive sensory information or be able to control movement of the body.
The peripheral nervous system is made up of nerves and neurons that transfer information through the body using electrical and chemical signals. Neurons have different roles, with sensory neurons collecting information from the senses and motor neurons sending messages from the brain to the body. Without a peripheral nervous system, the brain would not know what is happening in the body and would be unable to control movement.
The document summarizes the main components and functions of the human nervous system. It is divided into the central nervous system (CNS) and peripheral nervous system. The CNS consists of the brain and spinal cord, which coordinate sensory information and motor signals. The brain controls functions like sensation, thought, movement and memory through areas like the cerebrum, cerebellum and medulla oblongata. The peripheral nervous system includes nerves branching from the CNS to organs and skin, and is divided into the somatic and autonomic systems. The autonomic system regulates involuntary functions through the sympathetic and parasympathetic systems.
The nervous system consists of the central nervous system (brain and spinal cord) and peripheral nervous system. The main function of the nervous system is to control and coordinate functions throughout the body and respond to internal and external stimuli via neurons which carry electrical signals. Neurons connect and communicate with each other via synapses using chemical messengers called neurotransmitters. The nervous system allows for voluntary and involuntary movement, processing of the senses, and regulates organ functions.
The document discusses the nervous system, which is made up of the central nervous system (brain and spinal cord) and peripheral nervous system. The central nervous system receives sensory information and controls responses through the brain and spinal cord. It is divided into the forebrain, midbrain, and hindbrain. The peripheral nervous system connects the central nervous system to the rest of the body through nerves and is divided into the somatic and autonomic systems. Common nervous system diseases include Alzheimer's disease, which causes memory loss and cognitive decline, and epilepsy, which involves seizures.
Survey of Anatomy and Physiology Chap 9 Part Onecmahon57
油
The document provides an overview of the nervous system. It describes the nervous system as having two main parts: the central nervous system (CNS) consisting of the brain and spinal cord, and the peripheral nervous system (PNS). The PNS is further divided into the somatic and autonomic systems. The somatic system controls voluntary muscles and the autonomic system controls involuntary functions like digestion and heart rate. The autonomic system has two divisions - the sympathetic and parasympathetic systems which work in opposition to activate the fight or flight response or rest and digest responses respectively.
Unit-I, Chapter_1 Nervous System Final PPT.pptAudumbar Mali
油
The nervous system is divided into the central nervous system and peripheral nervous system. The central nervous system consists of the brain and spinal cord and contains gray matter and white matter. The peripheral nervous system is made up of nerves that branch throughout the body. The nervous system detects environmental changes and coordinates the body's actions and sensory information through transmitting signals via neurons. It is composed of neurons, which are the basic functional units, and neuroglia, which provide structure and support. The nervous system functions through nerve impulses that travel along neurons via action potentials and neurotransmitters to transmit signals between neurons.
The nervous system has two main parts - the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is made up of the brain and spinal cord, and acts as the main control center. The brain controls all body functions and processes sensory information. The spinal cord relays messages between the brain and body and coordinates reflexes. The PNS connects the CNS to the rest of the body using cranial and spinal nerves. It links the CNS to sensory receptors and muscles throughout the body.
Human nervous system for allied health students.pptdrn00r
油
The document discusses the structure and function of the nervous system. It describes the central nervous system as consisting of the brain and spinal cord which act as the body's control center. The peripheral nervous system is made up of nerves connecting the central nervous system to the rest of the body. Within the central nervous system, neurons transmit electrical signals through the body to coordinate its activities. The three main sections of the brain are the cerebrum, cerebellum and brainstem, each with distinct roles in movement, coordination, memory and other cognitive functions.
Analysion concerning nervous system .pptxmwessapeter3
油
Peter is a student at the Health Care and Paramedic Science school studying radiology and imaging technology from 2024-2027. The document provides an overview of the nervous system including its main components and functions. It describes the central nervous system consisting of the brain and spinal cord which process sensory information and coordinate bodily functions. The peripheral nervous system includes nerves throughout the body which transmit signals between the central nervous system and other parts of the body. Common disorders that can affect the nervous system are also listed such as Alzheimer's disease, cancer, cerebral palsy and epilepsy.
The nervous system is made up of neurons that regulate bodily processes. It has two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS consists of the brain and spinal cord. The spinal cord carries sensory information to the brain and motor commands from the brain. Damage to the CNS was once thought to be permanent but scientists have found ways to implant nerve fibers to allow regeneration. The PNS connects the CNS to organs and muscles. It has two divisions - the somatic nervous system controls voluntary muscles, while the autonomic nervous system regulates involuntary functions like breathing. The autonomic nervous system has sympathetic and parasympathetic divisions that work in opposition to arouse and
The nervous system coordinates and controls body functions by receiving sensory input, processing information, and ordering responses. It consists of the central nervous system (CNS) and peripheral nervous system (PNS). The CNS includes the brain and spinal cord and processes sensory information before sending motor commands. The brain coordinates most activities and is divided into sections responsible for different functions. The spinal cord relays impulses between the brain and body. The PNS includes cranial and spinal nerves and has autonomic and somatic divisions.
The document summarizes key aspects of the nervous system, including its central and peripheral components. The central nervous system includes the brain and spinal cord, which process and respond to messages from the peripheral nervous system. The peripheral nervous system connects all body parts to the central nervous system using neurons, sensory neurons that gather information and motor neurons that send signals. The nervous system also has somatic and autonomic divisions, with the somatic controlling voluntary movement and the autonomic regulating involuntary functions like digestion. The brain acts as the main control center and is comprised of the cerebrum, cerebellum and medulla, each with distinct roles in thinking, movement and involuntary processes.
The nervous system is divided into the central nervous system and the peripheral nervous system. The central nervous system includes the brain and spinal cord, and controls and coordinates body functions. The peripheral nervous system connects the central nervous system to the rest of the body using nerves and contains sensory neurons that carry messages to the central nervous system and motor neurons that carry messages away from it. Neurons are the basic functional units of the nervous system and communicate with each other via electrical and chemical signals to control bodily functions like movement and organ activity.
The right half of the brain controls the left half of the body. This means that only left handed people are in their right mind.
Made up of brain and spinal cordActs as bodys control center, coordinates bodys activitiesImpulses travel through the neurons in your body to reach the brainCentral Nervous System is yellow in this diagram.
Made up of all the nerves that carry messages to and from the central nervous system.Similar to telephone wires that connect all of our houses in the communityCentral Nervous System and Peripheral Nervous System work together to make rapid changes in your body in response to stimuli.Peripheral Nervous System is green in this diagram.
Somatic Nervous SystemRelay information between skin, skeletal muscles and central nervous systemYou consciously control this pathway by deciding whether or not to move muscles (except reflexes)Reflexes: Automatic response to stimulusAutonomic Nervous SystemRelay information from central nervous system to organsInvoluntary: You do not consciously control theseSympathetic Nervous System: controls in times of stress, such as the flight or fight responseParasympathetic Nervous System: controls body in times of rest
The nervous system is responsible for coordinating all body activity and is divided into the central nervous system and peripheral nervous system. The central nervous system consists of the brain and spinal cord and controls everything in the body. It is made up of over 10 billion nerves and is divided into the cerebrum, cerebellum, and brain stem, each controlling different functions like thinking, balance, and heartbeat. The peripheral nervous system is made of nerves and sense organs and carries messages between the central nervous system and the rest of the body.
The document discusses the structure and function of the nervous system. It describes how the central nervous system, made up of the brain and spinal cord, coordinates the body's activities through the neurons. The peripheral nervous system connects to and relays messages from the central nervous system through sensory neurons, motor neurons, and interneurons. The three main sections of the brain - the cerebrum, cerebellum, and brainstem - each have distinct roles in controlling voluntary movement, balance, and involuntary functions. Major nervous system diseases and their prevalence and economic costs are also listed.
The nervous system has three main functions: receiving information, interpreting information, and making the body respond. It is divided into the central nervous system (brain and spinal cord) and peripheral nervous system (nerves throughout the body). The peripheral nervous system is further divided into the somatic nervous system (controls voluntary muscles and skin sensation) and autonomic nervous system (controls involuntary functions like heart rate through the sympathetic and parasympathetic divisions). Neurons are the basic functional units and transmit signals through electrical and chemical processes. Common nervous system ailments include multiple sclerosis, polio, brain tumors, meningitis, rabies, stroke, and encephalitis.
The peripheral nervous system is made up of nerves that transfer information through the body using electrical and chemical signals. Neurons are the basic building blocks and functional units of the nervous system. They are cells designed to quickly transmit information. Sensory neurons collect information from the senses and send it to the brain. The brain then sends signals to motor neurons which transmit messages to the body's locomotor system. Without a peripheral nervous system, the brain would not receive sensory information or be able to control movement of the body.
The peripheral nervous system is made up of nerves and neurons that transfer information through the body using electrical and chemical signals. Neurons have different roles, with sensory neurons collecting information from the senses and motor neurons sending messages from the brain to the body. Without a peripheral nervous system, the brain would not know what is happening in the body and would be unable to control movement.
The document summarizes the main components and functions of the human nervous system. It is divided into the central nervous system (CNS) and peripheral nervous system. The CNS consists of the brain and spinal cord, which coordinate sensory information and motor signals. The brain controls functions like sensation, thought, movement and memory through areas like the cerebrum, cerebellum and medulla oblongata. The peripheral nervous system includes nerves branching from the CNS to organs and skin, and is divided into the somatic and autonomic systems. The autonomic system regulates involuntary functions through the sympathetic and parasympathetic systems.
The nervous system consists of the central nervous system (brain and spinal cord) and peripheral nervous system. The main function of the nervous system is to control and coordinate functions throughout the body and respond to internal and external stimuli via neurons which carry electrical signals. Neurons connect and communicate with each other via synapses using chemical messengers called neurotransmitters. The nervous system allows for voluntary and involuntary movement, processing of the senses, and regulates organ functions.
The document discusses the nervous system, which is made up of the central nervous system (brain and spinal cord) and peripheral nervous system. The central nervous system receives sensory information and controls responses through the brain and spinal cord. It is divided into the forebrain, midbrain, and hindbrain. The peripheral nervous system connects the central nervous system to the rest of the body through nerves and is divided into the somatic and autonomic systems. Common nervous system diseases include Alzheimer's disease, which causes memory loss and cognitive decline, and epilepsy, which involves seizures.
Survey of Anatomy and Physiology Chap 9 Part Onecmahon57
油
The document provides an overview of the nervous system. It describes the nervous system as having two main parts: the central nervous system (CNS) consisting of the brain and spinal cord, and the peripheral nervous system (PNS). The PNS is further divided into the somatic and autonomic systems. The somatic system controls voluntary muscles and the autonomic system controls involuntary functions like digestion and heart rate. The autonomic system has two divisions - the sympathetic and parasympathetic systems which work in opposition to activate the fight or flight response or rest and digest responses respectively.
Unit-I, Chapter_1 Nervous System Final PPT.pptAudumbar Mali
油
The nervous system is divided into the central nervous system and peripheral nervous system. The central nervous system consists of the brain and spinal cord and contains gray matter and white matter. The peripheral nervous system is made up of nerves that branch throughout the body. The nervous system detects environmental changes and coordinates the body's actions and sensory information through transmitting signals via neurons. It is composed of neurons, which are the basic functional units, and neuroglia, which provide structure and support. The nervous system functions through nerve impulses that travel along neurons via action potentials and neurotransmitters to transmit signals between neurons.
The nervous system has two main parts - the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS is made up of the brain and spinal cord, and acts as the main control center. The brain controls all body functions and processes sensory information. The spinal cord relays messages between the brain and body and coordinates reflexes. The PNS connects the CNS to the rest of the body using cranial and spinal nerves. It links the CNS to sensory receptors and muscles throughout the body.
This research aims to examine the relationship between demographic characteristics and academic performance among Grade 7 learners in Camandag National High School. Specifically, it seeks to determine the impact of age, gender, ethnicity, socioeconomic status, and geographical location on students' grades. The study will collect data on these demographic factors and academic metrics like test scores from a diverse sample of students. Statistical analysis will be used to investigate correlations between demographics and performance and identify any significant performance differences between demographic subgroups. The findings could help educators develop more effective policies and support systems.
This document discusses different types of assessment items: fixed response and constructed response. Fixed response items require students to select an answer from given options, while constructed response requires students to generate their own answers. Some key points made:
- Fixed response allows for quicker assessment of more items but can be susceptible to guessing. Constructed response reveals more about student understanding.
- Both item types have advantages - fixed response allows consistency while constructed response assesses higher-order skills.
- Effective scoring of constructed response involves criteria for partial credit and evaluating specific attributes of responses.
This document discusses the preparation and evaluation of instructional materials. It provides definitions of instructional materials and outlines their important roles in the language learning classroom. Materials serve as the basis for learner input and practice. The document also describes principles of effective material development, including achieving impact, relevance, authenticity, and accommodating different learning styles. Material evaluation is discussed, including external evaluation of the intended design and internal evaluation of implementation. The roles of materials in supporting teachers and learners are also summarized.
Lesson 3 and 4 Free Writing PowerPoint presentationCynthiaPinyuhan1
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This document provides guidance on free writing and storytelling activities that can be used in the classroom to help students improve their writing skills. It discusses free writing as a way to increase idea flow without censoring. It then outlines a 5-step process for free writing that includes listing ideas, selecting a topic, outlining, drafting, and revising. The document also provides ideas for developing story characters, plots, settings and resolutions. It suggests activities like story balls and anecdotal storytelling to engage students in oral storytelling.
Database population in Odoo 18 - Odoo slidesCeline George
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In this slide, well discuss the database population in Odoo 18. In Odoo, performance analysis of the source code is more important. Database population is one of the methods used to analyze the performance of our code.
Blind spots in AI and Formulation Science, IFPAC 2025.pdfAjaz Hussain
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The intersection of AI and pharmaceutical formulation science highlights significant blind spotssystemic gaps in pharmaceutical development, regulatory oversight, quality assurance, and the ethical use of AIthat could jeopardize patient safety and undermine public trust. To move forward effectively, we must address these normalized blind spots, which may arise from outdated assumptions, errors, gaps in previous knowledge, and biases in language or regulatory inertia. This is essential to ensure that AI and formulation science are developed as tools for patient-centered and ethical healthcare.
How to Configure Restaurants in Odoo 17 Point of SaleCeline George
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Odoo, a versatile and integrated business management software, excels with its robust Point of Sale (POS) module. This guide delves into the intricacies of configuring restaurants in Odoo 17 POS, unlocking numerous possibilities for streamlined operations and enhanced customer experiences.
Finals of Kaun TALHA : a Travel, Architecture, Lifestyle, Heritage and Activism quiz, organized by Conquiztadors, the Quiz society of Sri Venkateswara College under their annual quizzing fest El Dorado 2025.
Prelims of Kaun TALHA : a Travel, Architecture, Lifestyle, Heritage and Activism quiz, organized by Conquiztadors, the Quiz society of Sri Venkateswara College under their annual quizzing fest El Dorado 2025.
How to attach file using upload button Odoo 18Celine George
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In this slide, well discuss on how to attach file using upload button Odoo 18. Odoo features a dedicated model, 'ir.attachments,' designed for storing attachments submitted by end users. We can see the process of utilizing the 'ir.attachments' model to enable file uploads through web forms in this slide.
Prelims of Rass MELAI : a Music, Entertainment, Literature, Arts and Internet Culture Quiz organized by Conquiztadors, the Quiz society of Sri Venkateswara College under their annual quizzing fest El Dorado 2025.
Finals of Rass MELAI : a Music, Entertainment, Literature, Arts and Internet Culture Quiz organized by Conquiztadors, the Quiz society of Sri Venkateswara College under their annual quizzing fest El Dorado 2025.
SOCIAL CHANGE(a change in the institutional and normative structure of societ...DrNidhiAgarwal
油
This PPT is showing the effect of social changes in human life and it is very understandable to the students with easy language.in this contents are Itroduction, definition,Factors affecting social changes ,Main technological factors, Social change and stress , what is eustress and how social changes give impact of the human's life.
4. THE NERVOUS SYSTEM
The Brain organ is a part of one of the eight (8)
systems of the human anatomy, the nervous
system.
The purpose of the nervous system is information,
to gather produce responses to stimuli, and
coordinate the workings of different cells.
It is the command center of the other eights
systems in the human body.
6. 2 MAIN PARTS OF NERVOUS SYSTEM
1. CENTRAL NERVOUS SYSTEM (CNS)
processes, interprets and stores incoming sensory
information-information about our 5 senses to be
exact; tastes, sounds, smells, color, pressure on
the skin, the state of internal organs etc.
It is the specific command center (depicted in
yellow color) that sends out orders destined for
muscles, glands and body organs.
7. 2 MAJOR PARTS OF CNS
1. Spinal Cord
the extension of the brain. It runs from the base of the brain down the
center of the back, protected by a column of bones.
The cord acts as a sort of bridge between the brain and the parts of the
body below the neck. But the spinal cord is not merely a bridge. It also
produces some 12 behavior on its own, without any help from the brain.
These behaviors, called spinal reflexes, are automatic, requiring no
conscious effort. Example, if you accidentally touch a hot iron, you will
immediately pull your hand away, even before the brain can actually
comprehend the pain or the receptors kicks in. This is due to the nerve
impulses that brings message to the spinal cord, in this case hot. The
spinal cord immediately sends out a command via other nerve impulses,
telling muscles in your arm to contract and pull your hand away from the
iron.
8. PERIPHERAL NERVOUS SYSTEM (PNS)
this system handles the CNSs input and output
(depicted in green color). It contains all portions
of the nervous system outside the brain and
spinal cord, right down to nerves in the tips of
the fingers and toes.
The Sensory Nerves in the Peripheral Nervous
System carry messages from the special
receptors in the skin, muscles and other internal
and external sense organs to the spinal cord ,
which sends them along to the brain.