ANT II Cardiovascular and Respiratory Systems M1 SLP

ANT II Cardiovascular and Respiratory Systems M1 SLP -...

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Pamela Roberson ANT250 II Module 1 [email protected]
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Anatomy and Physiology II Cardiovascular & Respiratory Systems
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Introduction Describe the electrical conduction system of the heart The role of valves in normal cardiac function What happens during Cardiac valve failure Pulmonary circuit and its role in oxygenation of blood.
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Cardiac Conduction System
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The heart's electrical system is made up of three main parts: The sinoatrial (SA) node The atrioventricular (AV) node The His-Purkinje system
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How the hearts electrical conduction works
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How do the heart valves function? As the heart muscle contracts and relaxes, the valves open and shut, letting blood flow into the ventricles and atria at alternate times.
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Four Valves of the Heart Tricuspid valve - located between the right atrium and the right ventricle. Pulmonary valve - located between the right ventricle and the pulmonary artery. Mitral valve - located between the left
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Unformatted text preview: atrium and the left ventricle. • Aortic valve- located between the left ventricle and the aorta. Heart Valve Diagram Cardiac Valve Failure • Heart valves can malfunction in several ways, including the following: • Regurgitation- the valve does not close completely, causing the blood to flow backward instead of forward through the valve. • Stenosis- the valve opening is narrowed or does not form properly, inhibiting the Pulmonary Circuit Conclusion – Explain the electrical conduction system of the heart. – Describe the role of valves in normal cardiac function. References • Blanco, C. (n.d.). How the heart works. Retrieved January 22, 1010, from • http://health.howstuffworks.com/human-body/systems/circulatory/heart4.htm • Cardiac valve disease . (Revised 2010, December 31). Retrieved January 22, 1010, from • http://www.cvphysiology.com/Heart %20Disease/HD003.htm...
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ANT II Cardiovascular and Respiratory Systems M1 SLP -...

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