Last Modified: December, 2009. (J. Crimando)

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Practice Quiz #3

Choose the best answer to each question. Be sure to answer each question, unanswered question are scored as incorrect. When finished, check your final score by clicking on the "Grade" button at the bottom. There are nine more quizzes at the bottom of the page.

1. Normally, blood leaving the right ventricle immediately flows through the:
a. tricuspid atrioventricular valve
b. bicuspid/mitral atrioventricular valve
c. ileocecal valve
d. pulmonary semilunar valve  
e. aortic semilunar valve

2. Blood leaving the left atrium normally immediately flows through the:
a. tricuspid atrioventricular valve
b. bicuspid/mitral atrioventricular valve  
c. ileocecal valve
d. pulmonary semilunar valve
e. aortic semilunar valve

3. Deoxygenated blood is normally found only:
a. in the heart’s atria
b. in the heart’s ventricles
c. in the right side of the heart  
d. in the left side of the heart

4. Closing of the _______ normally prevents backflow of blood into the left ventricle:
a. tricuspid atrioventricular valve
b. bicuspid/mitral atrioventricular valve
c. ileocecal valve
d. pulmonary semilunar valve
e. aortic semilunar valve  

5. Closing of the _______ normally prevents backflow of blood into the right ventricle:
a. tricuspid atrioventricular valve
b. bicuspid/mitral atrioventricular valve
c. ileocecal valve
d. pulmonary semilunar valve  
e. aortic semilunar valve

6. The influence of a blood vessel’s diameter on peripheral resistance is:
a. minimal since the diameter of a blood vessel’s lumen only has a minor affect on peripheral resistance
b. very large since peripheral resistance is directly influenced by the diameter of a blood vessel’s lumen  
c. very small since the diameter of the lumen of a blood vessel does not vary
d. very large since the greater the diameter of the lumen of a blood vessel, the greater amount of peripheral resistance will be present

7. When evaluating the dynamics of capillary blood flow, capillary blood hydrostatic pressure:
a. does not play a role
b. is generally greater at the arterial end of a capillary than its venous end  
c. forces fluid from the interstitial spaces into the capillary
d. is usually equal to and canceled out by capillary blood osmotic pressure

8. Which of the following structures are directly involved in the "pulmonary circuit"?
a. superior vena cava, right atrium and left ventricle
b. right ventricle, pulmonary arteries and left atrium  
c. left ventricle, aorta and inferior vena cava
d. right atrium, aorta and left ventricle

9. Which of the following structures are directly involved in the "systemic circuit"?
a. superior vena cava, right ventricle and left ventricle
b. right ventricle, pulmonary arteries and left atrium
c. left ventricle, aorta and inferior vena cava  
d. right atrium, pulmonary trunk and left ventricle

10. Histologically, the _____ is simple squamous epithelium surrounded by a sparse connective tissue layer:
a. tunica interna/intima  
b. tunica media
c. tunica externa
d. tunica adventitia

  
 
 
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