PART C: Assessments Complete the following: 1. Compare the structure of the left atrioventricular valve with that of the aortic valve. A4 2. Describe the functions of the chordae tendineae and the papillary muscles. A4 3. What is the functional significance of the difference in thickness between the wall of the aorta and the wall of the pulmo- nary trunk? A4 4. List the correct pathway through which blood must flow in relation to regions of the heart. Assume blood is currently in the vena cava and will eventually enter the aorta. Include the major blood vessels (arteries and veins) attached directly to a heart chamber, the four heart chambers, and the four heart valves in your list. A2 A4 5. Describe the general overall shape of the left and right cavities of the ventricles as observed in a transverse section of the heart. A4 6. What was the measured thickness of the left ventricle wall? What was the measured thickness of the right ventricle wall? A4 CRITICAL THINKING ASSESSMENT What is the functional significance of the difference in thickness of the ventricular walls? A4
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- The left atrioventricular valve, also known as the mitral valve, has two cusps and is located between the left atrium and left ventricle. It is supported by chordae tendineae and papillary muscles. - The aortic valve has three semilunar cusps and is located Show more…
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Exterior: e. The boundary between atria and ventricles is called f. What marks the boundary between the ventricles on the anterior wall of the heart? g. What marks the boundary between the ventricles on the posterior wall of the heart? 9. Structure & Function of the Atria a. The right and left atria are the chambers of the heart. (discharging / receiving) b. Muscular pouches extending from the atria are called . Their function is to c. Atria are (thin- / thick-) walled chambers because d. The fossa ovalis is located in the right atrium. e. The foramen ovale is that existed in the f. How do the left and right atria differ in their function? 10. Structure & Function of the Ventricles a. The right and left ventricles are the (discharging / receiving) chambers of the heart. b. Ventricles are (thin- / thick-) walled chambers because c. are thin strands of collagen fibers that attach the atrioventricular valves to muscles in the wall of the ventricles. 11. Heart Valves a. Name the 2 major types of valves. i. ii. 12. Semilunar valves are found only in (arteries or veins). The tricuspid valve is found on the side of the heart; the bicuspid valve is found on the side of the heart. 13. AV valves prevent backflow into the , whereas the semilunar valves prevent backflow into the .
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Q1. A - List the chambers and valves of the heart in order as a blood cell makes its way from the superior vena cava to the right subclavian artery. Explain the terms incompetence and stenosis as applied to heart valves. B - Describe the surface markings of the heart and the heart valves, indicating where you would place your stethoscope to listen to these valves. Q2. A - Describe the surface markings of the right lung, its fissure, and list the bronchopulmonary segments. B - Describe the pleura, pleural cavities, reflections, and recesses. Q3. Write what happens to the proteins from the mouth to the anus (half page only).
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Correctly match the term with the correct order of blood flow through the heart (9 marks). Deoxygenated blood in the ________, ________ and the ________ enters the ________ of the heart. The blood passes through the ________ and into the ________. The deoxygenated blood is then pumped through the ________ into the ________ which branches into the ________ and ________ delivering the deoxygenated blood to the ________. After being oxygenated, the blood re-enters the heart through the ________ which empty into the ________. Then the blood flows through the ________ into the ________. From here, blood is ejected through the ________ into the ________ before entering the ________ and finally the systemic circulation. a. Superior vena cava b. Inferior vena cava c. Right atrium d. Left atrium e. Lungs f. Pulmonary veins g. Left pulmonary artery h. Right pulmonary artery i. Right atrioventricular (tricuspid) valve j. Mitral valve k. Ascending aorta l. Aortic arch m. Aortic semilunar valve n. Pulmonary semilunar valve o. Left ventricle p. Right ventricle q. Coronary sinus r. Pulmonary trunk
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