PHIS206Fal12017Exam3 13 October 2017 ple Choice ate the answer choice that best

Question

PHIS206Fal12017Exam3 13 October 2017 ple Choice ate the answer choice that best completes the statement or answers the question 7. In the systemic circulation, cardiac output is divided between organs in a parallel fashion. This ensures that: hich heart valve is bicuspid and also called the mitral a, aortic valve b. right AV valve c right ventricular valve d pulmonary valve e left AV valve a. Fewer vascular pathways are required b. The heart needs only pump half as hard c. All organ and tissue beds receive unused blood. d. The lungs will receive less blood than the rest of the body e. All organ and tissue beds receive the same flow hat circulatory system loops between the heart and of blood 8. Which of the following is contained in the "bufly coar" a. arterial b. cerebral a. Hematocrit b. RBCs e. Plasma Proteins d. Erythrocytes e. Platelets d. venous e systemic What cells in the conduction system normally have the 9. During exercise, percentages of cardiac output are altered in different vascular beds, but the ghest rate of firing APs? receives a. SA node b. AV node c apex of the heart d. Bundle of His e. Purkinje fibers nearly an identical amount of blood regardless of effort level a. The brairn b. The kidneys c. The skin d. The digestive tract and liver e. The heart Arterial pressure within the circulatory system is onstantly monitored by 10. What is the term for the relaxation phase of the cardiac cycle? b. pressure sinuses c endothelial cells d ganglions e. heart sensors a. Ejection b Systole c. Diastole d. Filling e Contraction S. The regulation of flow is the primary purpose of which essel type a Artery I Erythropoiesis is controlled byerythropoietin, which manufactured by and eleset om th b. Venule c. Vein d. Capillary e. Arteriole a. kidney b bone mar d splee , Flow rate of blood through a vessel is inversely proportional to a. Pressure at the beginning of the vessel b. Pressure difference c. Gravity d. Strength of the vessel e. The resistance of the vessel

Explanation / Answer

1. e. left atrioventricular valve is also known as bicuspid or mitral valve

2. c. pulmonary circulatory system loops between feart and lungs

3. a. SA node has the highest rate of firing AP's

4. a. baroreceptors monitor the blood pressure

5. e. arteriole

6. e. resistance of the vessel

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