The nervous system
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The nervous system is made up of the central nervous system (brain and spinal cord) and peripheral nervous system. It functions to transmit signals between different parts of the body via neurons. The brain is the main organ of the nervous system and is divided into four principal parts - the brain stem, cerebrum, cerebellum and diencephalon. The brain stem controls basic functions, the cerebrum controls sensory perception and voluntary movement, the cerebellum coordinates movement, and the diencephalon gives rise to posterior forebrain structures.
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The document discusses the nervous system, including:
- It is divided into the central nervous system (CNS) comprising the brain and spinal cord, and the peripheral nervous system (PNS) connecting to the CNS.
- The CNS contains over 1 trillion neurons and quadrillions of connections, and is responsible for functions like perception, movement, and cognition.
- The brain is the control center and is divided into the cerebrum, cerebellum, and brain stem, each with distinct functions like learning, coordination, and regulating vital functions.
- The spinal cord transmits signals between the brain and body and coordinates reflexes through ascending and descending tracts.
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The nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The CNS contains the brain and spinal cord. The brain is divided into three main parts - the cerebrum, cerebellum, and brain stem. The cerebrum is the largest part and is responsible for functions like learning, senses, and control of movement. The cerebellum aids in balance and muscle coordination. The spinal cord transmits signals between the brain and the rest of the body through spinal nerves. Neurons are the basic working units that transmit signals in the nervous system through electrical and chemical processes.nervous system 1.pptx
nervous system 1.pptxaayatasghar
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Nervous System, Central Nervous System, Brain, Fore Brain, Mid Brain, Hind Brain, Spinal Cord, Peripheral Nervous System, Somatic Nervous System, Autonomic system, sympathetic nervous system, parasympathetic nervous system, neuron, cranial nerves, spinal nerves, endocrine glands, psychology, behavioral nervous system, ADP part 1, Punjab university APPLIED psychologyThe human central nervous system types of central nervous system and types of...
The human central nervous system types of central nervous system and types of...mishalahmed743
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The human central nervous system types of central nervous system Chapter 2 nervous system
Chapter 2 nervous systemSaniaParveen10
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The nervous system is comprised of the central nervous system (CNS) and peripheral nervous system (PNS). The CNS contains the brain and spinal cord, and is responsible for processing sensory information and coordinating voluntary and involuntary actions. The highly complex brain is the control center and consists of different regions that perform specialized functions like memory, vision, and motor control. The PNS connects the CNS to the rest of the body and includes the autonomic nervous system which regulates involuntary body functions. Neurons are the basic functional units that transmit electrochemical signals throughout the nervous system, enabling it to coordinate all activities and maintain homeostasis.Nervous system
Nervous systemMae Anne Yao
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The nervous system coordinates the body's actions and transmits signals between parts. It controls voluntary and involuntary activities to help the body adjust. The nervous system includes the central nervous system (brain and spinal cord) and peripheral nervous system. The peripheral system includes the somatic system for voluntary movement and the autonomic system for involuntary functions like breathing and digestion. Within the autonomic system are the sympathetic, parasympathetic, and enteric systems that regulate internal organs. Neurons are the basic functional units that transmit electrochemical signals through the nervous system.Nervous system
Nervous systemSprint College
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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.Nervous system
Nervous systemsom allul
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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.Nervous system
Nervous systemsamrus1
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This document provides an overview of the nervous system and its components. It discusses the four main functions of the nervous system which include detecting and processing information, formulating responses, coordinating all body functions, and sending and receiving impulses. It describes the two main parts of the nervous system - the central nervous system consisting of the brain and spinal cord, and the peripheral nervous system with the sympathetic and parasympathetic systems. Finally, it outlines the three main types of neurons - sensory, connecting, and motor neurons - and their specific roles in carrying nerve impulses.Nervous System
Nervous SystemJelian Doria
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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.Ch50
Ch50kelsey
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The nervous system is composed of neurons that transmit signals throughout the body via electrical and chemical signals. The central nervous system includes the brain and spinal cord, while the peripheral nervous system includes all other neurons. Sensory neurons collect information and transmit it to the central nervous system, while motor neurons transmit signals from the central nervous system to tissues. The brain controls homeostasis and interprets sensory information. It is composed of regions like the cerebrum, brainstem, and cerebellum. The peripheral nervous system includes sensory receptors, motor neurons, and the autonomic nervous system. Neurons transmit signals via action potentials generated by ion flow across membranes. Neurotransmitters transmit signals between neurons. Sensory systems allow the detection of stimuliTHE-NERVOUS-SYSTEM.pdf
THE-NERVOUS-SYSTEM.pdfMitzieMalinias
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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.CNS AND PNS NURSING .pptx1-1.pptx
CNS AND PNS NURSING .pptx1-1.pptxRaghda ALKhateeb
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Lecture notes for the 1st stage students of the Nursing College, medical students or anyone interested in the human physiology. Brain and Spinal Cord
Brain and Spinal CordDr. Neeta Gupta
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The nervous system is the body's command center that controls functions like movement, thoughts, digestion and breathing. It has four main functions - receiving sensory information, integrating sensory information, processing information, and generating responses. The nervous system can be divided into the central nervous system (brain and spinal cord) and peripheral nervous system. The brain is divided into three main parts - the forebrain, midbrain, and hindbrain. The forebrain controls higher functions like thought and language. The midbrain controls eye movement and processes sensory information. The hindbrain regulates vital functions like breathing and heart rate.Nervous system physiology.pdf
Nervous system physiology.pdfIshita60889
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This document provides an overview of the human nervous system, including:
- The central nervous system (CNS) consists of the brain and spinal cord. The peripheral nervous system (PNS) includes nerves connecting the CNS to muscles and sensory organs.
- The nervous system has sensory, integrative, and motor functions. Sensory neurons detect stimuli and send signals to the CNS. The CNS integrates these signals and directs motor neurons to respond.
- Neurons are the basic functional units and come in various types. They are supported by glial cells like oligodendrocytes and astrocytes. The CNS is protected by meninges and cerebrospinal fluid.The nervous system
- 1. By Alden Ceasar Pilongo
- 2. Is a complex network of nerves and cells that carry messages to and from the brain and spinal cord to various parts of the body. Function The function of the nervous system is to send signals from one cell to others, or from one part of the body to others.
- 3. The nervous system includes both the Central nervous system and Peripheral nervous system. The Central nervous system is made up of the brain and spinal cord and The Peripheral nervous system is made up of the Somatic and the Autonomic nervous systems. The Main Parts Brain Spinal Cord Neuron
- 4. the function of the brain is to provide coherent control over the actions of a human or animal the brain weighs approximately 1.3 to 1.4 kg The brain consists of four principal parts: the brain stem the cerebrum the cerebellum the diencephalon
- 5. This is also known as the Medulla Oblongata The medulla oblongata controls autonomic functions, and connects the higher levels of the brain to the spinal cord. It is also responsible for regulating several basic functions of the autonomic nervous system which include respiration, cardiac center, vasomotor center and reflex centers of vomiting, coughing, sneezing, and swallowing. Any nerve fibers that are sent to the rest of the body from the brain must move through the brain stem.
- 6. The cerebrum forms the bulk of the brain and is supported on the brain stem. The cerebrum is divided into two hemispheres. Each hemisphere controls the activities of the side of the body opposite that hemisphere. It functions as the center of sensory perception, memory, thoughts and judgment; also functions as the center of voluntary motor activity.
- 7. Frontal lobe- The executive functions of the frontal lobes involve the ability to recognize future consequences resulting from current actions, to choose between good and bad actions (or better and best), override and suppress socially unacceptable responses, and determine similarities and differences between things or events. Parietal lobe- The parietal lobe plays important roles in integrating sensory information from various parts of the body, knowledge of numbers and their relations, and in the manipulation of objects. Occipital lobe- Occipital lobe function includes processing of vision and color recognition. Temporal lobe- The temporal lobes play an important role in organizing sensory input, auditory perception, language and speech production, as well as memory association and formation.
- 8. The cerebellum is a rounded structure located behind the brain stem, to which it is linked by thick nerve tracts. It is concerned mainly with the maintenance of posture and balance and the coordination of movement.
- 9. The diencephalon is also known as the fore brain stem. It gives rise to posterior forebrain structures including the thalamus, hypothalamus, posterior portion of the pituitary gland, and pineal gland.
- 10. The spinal cord consists of thirty-one pairs of spinal nerves. They are all mixed nerves, and they provide a two-way communication system between the spinal cord and parts of the arms, legs, neck and trunk of the body. The spinal cord has three major functions: as a conduit for motor information, which travels down the spinal cord, as a conduit for sensory information in the reverse direction, and finally as a center for coordinating certain reflexes.
- 11. A neuron is an electrically excitable cell that processes and transmits information through electrical and chemical signals. Neurons are the core components of the nervous system A number of specialized types of neurons exist: sensory neurons respond to touch, sound, light and numerous other stimuli affecting cells of the sensory organs that then send signals to the spinal cord and brain. Motor neurons receive signals from the brain and spinal cord, cause muscle contractions, and affect glands.
- 12. Dendrites Axon terminal Node of Cell Body Ranvier Schwaan Cell Myelin Sheath Nucleus