MSU BIO216 Lecture - Week 2-3 Objective Assignment

MSU BIO216 Lecture - Week 2-3 Objective Assignment -...

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BIOL216 Lecture Week 2-3 Objective Assignment Chapter 18: The Cardiovascular System: The Heart Heart Anatomy Name the coverings of the heart. 1. Describe the structure and function of each of the three layers of the heart wall. A. Epicardium - outer layer/visceral layer B. Myocardium - second layer - responsible for contractions C. Endocardium - inner layer - lines cavity and forms valves 2. Describe the structure and functions of the four heart chambers. Name each chamber and provide the name and general route of its associated great vessel(s). Chamber Function General Route Right atrium Receiving chamber Desaturated blood returns from body and flows into right ventricle Right ventricle Pumping chamber Desaturated blood is pushed out of the right ventricle into pulmonary arteries and then into the lungs Left atrium Receiving chamber Oxygen rich blood from lungs returns and enters the left atrium via the pulmonary veins Left ventricle Pumping chamber Oxygen rich blood is pumped out of the left ventricle and into the body through the aorta
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BIOL216 Lecture Week 2-3 Objective Assignment 3. Name the heart valves and describe their location, function, and mechanism of operation. Valve Location Function Mechanism of Operation AV Valve Tricuspid (Right AV Valve) Between right atrium and right ventricle Prevents the back flow of blood as it is pumped from the right atrium to the right ventricle. When right atrium
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This note was uploaded on 05/07/2010 for the course BIOLOGY BIO 216 taught by Professor Tucker during the Spring '10 term at Mountain State.

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MSU BIO216 Lecture - Week 2-3 Objective Assignment -...

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