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4.3 Quiz - HBS
Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
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1. Blood within the pulmonary veins returns to the
a. right atrium
c. right ventricle
b. left atrium
d. left ventricle
2. Blood is carried by the capillaries in the myocardium by way of
a. the coronary sinus
c. coronary arteries
b. the fossa ovalis
d. coronary veins
3. Cardia output is about _________ L/min
a. 6.5-7.5
c. 4.5-5.5
b. 5.5-6.5
d. 3.5-4.5
4. The stroke volume for a normal resting heart rate is _________ mL/beat
a. 30
c. 75
b. 55
d. 95
5. Which of the following is NOT part of the conduction system of the heart?
a. AV node
c. AV valve
b. bundle of His
d. SA node
6. Select the correct statement about the heart valves.
a. The mitral valve seperates the right atrium from the right ventricle
b. The tricuspid valve divides the left atrium from the left ventricle
c. Senimlunar valves control the flow of blood into the heart.
d. The AV valves are supported by chorde tendineae so that they do not blow back up into
the atria during ventricular contration.
7. Select the correct statement about the structure of the heart wall.
a. The fibrous skeleton forms the bulk of the heart.
b. Connective tissue in the heart wall aids in the conduction of the action potential
c. The heart chambers are lined by the endomysium.
d. The myocardium is the later of the heart that actually contracts.
8. Cardiac output is equal to stroke volume multipled by
a. heart rate
c. bradycardia
b. blood pressure
d. systole
9. Which statement best describes arteries?
a. All carry oxygenated blood to the heart.
b. All carry blood away from the heart.
c. All contain valves to prevent the backflow of blood
d. Only large arteries are lined with enothelium.
10. Permitting the exchange of nutrients and gases between the blood and tissue cells is the primary function of
a. arterioles
c. veins
b. arteries
d. capillaries
11. The arteries that directly feed into the capillary beds are called
a. muscular arteries
c. arterioles
b. elastic arteries
d. venules
12. A disease characterized by abnormal thickening and hardening of the artierial walls is called
a. arteriosclerosis
c. atriumsclerosis
b. atherosclerosis
d. multiple sclerosis
____ 13. Striated muscle that form the wall of the heart is called
a. cardiac muscle
c. skeletal muscle
b. smooth muscle
d. muscle
____ 14. Which chamber of the heart receives blood from the veins?
a. right atrium
c. right ventricle
b. left atrium
d. left ventricle
____ 15. Which vessel connects the artrieoles and venules?
a. capillary
c. vein
b. artery
d. ventricle
____ 16. Which of the following carries blood from the heart to be distrubuted throughout the body?
a. aorta
c. pulmonary artery
b. coronary artery
d. subclavian artery
____ 17. What does ABI help diagnose?
a. conorary disease
c. ateriosclerosis
b. peripheral artery disease
d. atherosclerosis
____ 18. What feature in veins helps move blood back to the heart?
a. venule
c. muscluar and elastic walls
b. smooth muscle
d. valves
____ 19. The subclavian artery is located
a. on the clavicle
c. on top scapula
b. under the humerus
d. under the cervical region
____ 20. The cephalic vein is located
a. on the upper leg
c. on the upper arm
b. on the head
d. on the lower leg
Essay
21. Trace the pathway of blood starting with the right atrium. Include the following: heart chambers invovled,
major blood vessels involved, and general areas through which the blood flows. (8 points)
22. Why can smoking lead to peripheral artery disease? (4 points)
23. How does an increase or decrease in cardiac output impact the body? (4 points)
24. How do varicose veins form and why do we not see varicose arteries? (4 points)
4.3 Quiz - HBS
Answer Section
MULTIPLE CHOICE
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ESSAY
21. ANS:
answer
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answer
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