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Heart

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Amritha Anand

The document summarizes key details about the heart: - The heart is approximately the size of a fist and located superior to the diaphragm on the left side of the midline. - It has two layers of protective membranes called the pericardium surrounding it. - Major vessels returning blood to the heart include the superior and inferior vena cavae and pulmonary veins. Major vessels carrying blood away include the pulmonary trunk which splits into pulmonary arteries and the aorta. - The heart has four chambers - two upper atria which receive blood and two lower ventricles which pump blood out. The right ventricle pumps to the lungs while the left ventricle pumps to the body.

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Power point Presentation on BENSON ABRAHAM NATURAL SCIENCE REG.NO. : 1 3 3 8 6 0 0 5 Heart
Heart Approximately the size of your fist Location Superior surface of diaphragm Left of the midline Anterior to the vertebral column, posterior to the sternum
Coverings of the Heart Pericardium a double-walled sac around the heart composed of: A superficial fibrous pericardium A deep two-layer serous pericardium The parietal layer lines the internal surface of the fibrous pericardium The visceral layer or epicardium lines the surface of the heart They are separated by the fluid-filled pericardial cavity
Heart: Major Vessels of the Heart Vessels returning blood to the heart include: Superior and inferior venae cavae Right and left pulmonary veins Vessels conveying blood away from the heart: Pulmonary trunk, which splits into right and left pulmonary arteries Ascending aorta (three branches) brachiocephalic, left common carotid, and subclavian arteries
Vessels returning blood to the heart include: Right and left pulmonary veins Superior and inferior venae cavae Vessels conveying blood away from the heart include: Aorta Right and left pulmonary arteries
Heart
Chambers of heart: Atria Atria are the receiving chambers of the heart Each atrium has a protruding auricle Blood enters right atria from superior and inferior venae cavae and coronary sinus Blood enters left atria from pulmonary veins
Chambers of heart: Ventricles Ventricles are the discharging chambers of the heart Papillary muscles and trabeculae carneae muscles mark ventricular walls Right ventricle pumps blood into the pulmonary trunk Left ventricle pumps blood into the aorta
Pathway of Blood Through the Heart and Lungs Right atrium tricuspid valve right ventricle Right ventricle pulmonary semilunar valve pulmonary arteries lungs Lungs pulmonary veins left atrium Left atrium bicuspid valve left ventricle Left ventricle aortic semilunar valve aorta Aorta systemic circulation
Heart
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Heart

  • 1. Power point Presentation on BENSON ABRAHAM NATURAL SCIENCE REG.NO. : 1 3 3 8 6 0 0 5 Heart
  • 2. Heart Approximately the size of your fist Location Superior surface of diaphragm Left of the midline Anterior to the vertebral column, posterior to the sternum
  • 3. Coverings of the Heart Pericardium a double-walled sac around the heart composed of: A superficial fibrous pericardium A deep two-layer serous pericardium The parietal layer lines the internal surface of the fibrous pericardium The visceral layer or epicardium lines the surface of the heart They are separated by the fluid-filled pericardial cavity
  • 4. Heart: Major Vessels of the Heart Vessels returning blood to the heart include: Superior and inferior venae cavae Right and left pulmonary veins Vessels conveying blood away from the heart: Pulmonary trunk, which splits into right and left pulmonary arteries Ascending aorta (three branches) brachiocephalic, left common carotid, and subclavian arteries
  • 5. Vessels returning blood to the heart include: Right and left pulmonary veins Superior and inferior venae cavae Vessels conveying blood away from the heart include: Aorta Right and left pulmonary arteries
  • 7. Chambers of heart: Atria Atria are the receiving chambers of the heart Each atrium has a protruding auricle Blood enters right atria from superior and inferior venae cavae and coronary sinus Blood enters left atria from pulmonary veins
  • 8. Chambers of heart: Ventricles Ventricles are the discharging chambers of the heart Papillary muscles and trabeculae carneae muscles mark ventricular walls Right ventricle pumps blood into the pulmonary trunk Left ventricle pumps blood into the aorta
  • 9. Pathway of Blood Through the Heart and Lungs Right atrium tricuspid valve right ventricle Right ventricle pulmonary semilunar valve pulmonary arteries lungs Lungs pulmonary veins left atrium Left atrium bicuspid valve left ventricle Left ventricle aortic semilunar valve aorta Aorta systemic circulation