Cells of the adrenal medulla are closely associated with preganglionic fibers of the
parasympathetic division of the autonomic nervous system.
Indicate whether the statement is true or false
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Question 2) A vaccine against HIV
A) is available for those who can afford it.
B) may be impossible due to the variability and diversity of HIV.
C) prevents opportunistic infections.
D) consists of cocktails of drugs taken daily.
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Question 3) The visceral pericardium lines the pericardial cavity, whereas the parietal pericardium
covers the surface of the heart.
Indicate whether the statement is true or false
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Question 4) Parathyroid hormone stimulates the activity of bone-resorbing osteoblasts.
Indicate whether the statement is true or false
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Question 5) Risk factors for deep vein thrombosis are
A) use of oral contraceptives or estrogen.
B) dehydration.
C) all of the above.
D) prolonged periods of staying still in one position.
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Question 6) The extrafollicular cells of the thyroid gland secrete calcitonin.
Indicate whether the statement is true or false
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Question 7) In HIV infection, reverse transcriptase
A) makes DNA from viral RNA. B) makes protein from viral RNA.
C) makes RNA from viral DNA. D) makes protein from viral DNA.
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Question 8) On a long transcontinental flight, a middle-aged man gets up and exercises in the aisle,
moving his hands, feet, arms, and legs as much as he can. He does this every two hours.
The flight attendant asks him to sit down, but he explains that he is trying to prevent a
very dangerous medical condition. He is talking about
A) deep vein thrombosis. B) leukemia.
C) aplastic anemia. D) thrombocytopenia.
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Question 9) The smaller branches of the coronary arteries have some anastomoses between vessels.
Indicate whether the statement is true or false
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Question 10) Oxytocin stimulates the kidneys to conserve water.
Indicate whether the statement is true or false
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