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Cardiovscular: Anatomy and Physiology

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by: Imee Oponda

Cardiovscular: Anatomy and Physiology 240-Human Anatomy

Marketplace > University of South Carolina > Biology > 240-Human Anatomy > Cardiovscular Anatomy and Physiology
Imee Oponda
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About this Document

shortened notes and more understandable
Victor Gonzalez
Class Notes
nursing medical surgical cardiovascular




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"I'm pretty sure these materials are like the Rosetta Stone of note taking. Thanks Imee!!!"
Cortney Mertz

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This 3 page Class Notes was uploaded by Imee Oponda on Tuesday February 9, 2016. The Class Notes belongs to 240-Human Anatomy at University of South Carolina taught by Victor Gonzalez in Winter 2016. Since its upload, it has received 29 views. For similar materials see BIOL in Biology at University of South Carolina.

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Reviews for Cardiovscular: Anatomy and Physiology

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I'm pretty sure these materials are like the Rosetta Stone of note taking. Thanks Imee!!!

-Cortney Mertz


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Date Created: 02/09/16
Cardiovascular I. Anatomy and Physiology  A. Anatomy  1. Layers  a. pericardium: fibrous  b. epicardium: covers surface of heart  c. myocardium: muscular portion of the heart  d. endocardium: lines cardiac chambers and covers surface of heart  valves  2. Chambers of heart  a. right atrium: collecting chamber for incoming systemic venous  system  b. right ventricle: propels blood into pulmonary system  c. left atrium: collects blood from pulmonary venous system  d. left ventricle: thick­walled, high­pressure pump that propels blood  into system  3. Heart valves: membranous openings that allow one way blood flow  a. atrioventricular valves: prevent backflow from ventricles to atria  during systole  b. tricuspid ­ right heart valve  c. mitral ­ left heart valve  d. semilunar valves prevent backflow from aorta and pulmonary  arteries into ventricles during diastole  i. pulmonic  ii. aortic  4. Blood supply to heart  a. arteries  i. right coronary artery supplies right ventricle and part of left ventricle  ii. left coronary artery supplies mostly left ventricle  b. veins  i. coronary sinus veins  ii. thebesian veins  5. Conduction system  a. SA (sinoatrial) node  b. junctional tissue  c. bundle branch Purkinje system  B. Physiology  1. Function of the heart is the transport of oxygen, carbon dioxide, nutrients  and waste products  2. Cardiac cycle consists of:  a. systole ­ the phase of contraction during which the chambers eject  blood  b. diastole ­ the phase of relaxation during which the chambers fill  with blood. When heart pumps, myocardial layer contracts and  relaxes.  3. Blood flow:   a. deoxygenated blood enters the right atrium through the superior  and inferior vena cava  b. enters the right ventricle via the tricuspid valve  c. travels through the pulmonic valve to pulmonary arteries and lungs d. oxygenated blood returns from lungs through the pulmonary veins  into left atrium and enters the left ventricle via bicuspid (mitral)  valve.  e. from the left ventricle, through the aortic valve through the aorta to the systemic circulation  4. The heart itself is supplied with blood by the left and right coronary  arteries  5. The vascular system is a continuous network of blood vessels.  a. the arterial system consists of arteries, arterioles and capillaries and delivers oxygenated blood to tissues  b. oxygen, nutrients and metabolic waste are exchanged at the  microscopic level  c. the venous system, veins and venules, returns the blood to the heart


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