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BIO202_MH_V3
Topic 3: Cardiovascular System: Blood Vessels and Circulation
Started on Thursday, October 21, 2021, 1:22 AM
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... [Show More] Finished
Completed on Thursday, October 21, 2021, 1:45 AM
Time taken 23 mins 8 secs
Grade 40.00 out of 40.00 (100%)
Question 1
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Venous drainage from the posterior thoracic wall enters the superior vena cava via the
______ vein.
Select one:
a. subclavian
b. internal thoracic
c. accessory hemiazygos
d.
hemiazygos
e. azygos
Question 2Correct
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Select the description below that describes pulmonary circulation.
Select one:
a. System of blood vessels that carries blood from the heart to the lungs and back to the
right atrium of the heart.
b. System of blood vessels that a carries blood from the heart to the rest of the body.
c. Finely dissected blood vessels that allow for the exchange of nutrients in the tissues.
d.
System of blood vessels that carries blood from the heart to the lungs and back to the left
atrium of the heart.
Question 3
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The hepatic portal vein is formed by the union of the splenic vein and the
Select one:
a. superior mesenteric vein.
b. inferior mesenteric vein.
c. hepatic vein.
d. renal vein.
e. gastric vein.
Question 4
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The three major arteries of the upper limb that form a continuum are the
Select one:
a. brachial, radial, and ulnar arteries.
b. brachial, axillary, and radial arteries.
c. subclavian, axillary, and radial arteries.
d. subclavian, axillary, and brachial arteries.
e. cephalic, basilic, and brachial arteries
Question 5
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All of the following are functions of the circulatory system, except
Select one:
a. carries blood.
b. regulates blood pressure.
c. transports nutrients.
d. directs blood flow to tissues.
e. excretes wastes.
Question 6
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Blood flow into the deep and superficial palmar arches originates from the ______ and ____
arteries.
Select one:
a. humeral circumflex; deep brachial
b. superficial palmar arch; digital
c. brachial; subclavian
d.
axillary; subclavian
e. radial; ulnar
Question 7
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According to Poiseuille's law, a small decrease in the diameter of a vessel will
Select one:
a. dramatically decrease blood flow.
b. slightly decrease blood flow.
c. not affect blood flow.
d. slightly increase blood flow.
e. dramatically increase blood flow.
Question 8
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Which of the following would occur as a result of increased renin release by the kidneys?
Select one:
a. an increase in vasodilator secretion
b. an increase in urine output
c. an increase in blood volume
d. a decrease in aldosterone
e. a decrease in blood pressure
Question 9
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Arteries can constrict or dilate as needed because of the smooth muscle found in the
Select one:
a. tunica intima.
b. tunica media.
c. tunica adventitia.
d. tunica externa.
e. tunica interna.
Question 10
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Which of the following functions is associated with vessels that carry blood directly from
arterioles to veins without passing through capillaries?
Select one:
a. thermoregulation
b. nutrient supply to tissues
c. removal of metabolic waste products from tissues
d. oxygen supply to tissues
e. pH regulation
Question 11
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Which kind of vessel provides a bypass for a capillary bed?
Select one:
a. sinusoid
b. portal vein
c. thoroughfare channel
d. vasa vasorum
e. metarteriole
Question 12
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What are vasa vasorum?
Select one:
a. Blood vessels that connect primary and secondary capillary networks.
b. Structures within veins that keep blood flowing in one direction.
c. Connective tissue that surrounds large vessels.
d. Nerve plexuses surrounding the blood vessel.
e. Blood vessels that nourish the tunica adventitia and tunica media.
Question 13
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Which of the following enhances the exchange between capillary walls and the interstitial
spaces?
Select one:
a. the thinness of the capillary wall
b. minimal branching in the capillary bed
c. increased blood velocity through the capillaries
d. the high pressure in the interstitial spaces
e. the stratification of the capillary wall
Question 14
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In capillary exchange, which of the following statements is true?
Select one:
a. Most fluid that leaves the arterial end of a capillary reenters the venous end of a
capillary.
b. Interstitial fluid normally has a higher osmotic pressure than plasma.
c. Constriction of the precapillary sphincter will increase blood pressure in the capillary.
d. Interstitial protein concentration is normally higher than plasma protein concentration.
e. Most fluid that leaves the arterial end of a capillary enters the lymphatic system.
Question 15
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What is the order of the blood vessels that a red blood cell would pass through as the blood
leaves the heart, travels to a tissue, and then returns to the heart?
Select one:
a. arteriole, artery, capillary, vein, venule
b. capillary, arteriole, artery, vein, venule
c. artery, arteriole, capillary, venule, vein
d. vein, capillary, artery, arteriole, venule
e. artery, venule, capillary, arteriole, vein
Question 16
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Which of the following is NOT a pericapillary cell found in capillaries?
Select one:
a. macrophages
b. neurons
c. undifferentiated smooth muscle cells
d. fibroblasts
Question 17
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Arteriosclerosis results in decreased compliance, which in turn causes the pulse pressure to
Select one:
a. increase.
b. decrease.
c. increase, then decrease.
d. decrease, then increase.
e. remain the same.
Question 18
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Art is 75. He has advanced arteriosclerosis. He is suffering from a number of
manifestations, which are consistent with his arteriosclerosis. Over the past several years
he has developed hypertension and he is beginning to show signs of renal failure. Which of
the following are consistent with his condition?
Select one:
a. increased resistance to blood flow
b. increased renin secretion from the kidneys
c. increased aldosterone secretion from the adrenal cortex
d. increased angiotensinogen formation
e. All of these choices is correct.
Question 19
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In response to circulatory shock,
Select one:
a. the body decreases ADH secretion.
b. the renin-angiotensin mechanism is activated.
c. atrial natriuretic factor is released.
d. the vasomotor center is inhibited.
e. the baroreceptors and chemoreceptors are inactivated.
Question 20
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Case study:
Dale Fremore was back home after spending the day at a picnic where he ate some
"spoiled" potato salad. He developed severe abdominal pain and cramps, vomiting, and
diarrhea. After about ten to twelve episodes of water diarrhea, Mr. Fremore became so pale
and weak he could hardly walk. His wife took him to the hospital where he was diagnosed
with severe dehydration (decreased plasma volume). Mr. Fremore was suffering from
shock.
The body has several mechanisms that can come into play to try to maintain blood pressure
and blood flow when a person goes into shock.
Urine output usually decreases when a person is in shock. This is the result of
Select one:
a. decreased ADH secretion.
b. increased renin secretion.
c. increased secretion of atrial natriuretic factor.
d. decreased vasoconstriction due to the stress relaxation response.
e. decreased aldosterone secretion [Show Less]