A physician is teaching a group of medical students about the physiological basis for damage to the circulatory and neurological systems that can accompany hypotension
Which of the following responses by a student would warrant correction by the physician?
A)
"As vessel wall thickness increases, tension decreases."
B)
"Smaller blood vessels require more pressure to overcome wall tension."
C)
"The smaller the vessel radius, the greater the pressure needed to keep it open."
D)
"Tension and vessel thickness increase proportionately."
Ans:
D
Feedback:
Tension and vessel wall thickness are inversely proportionate, in that thinner blood vessels have greater tension and vice versa. Answer choices A, B, and C all express the correct inverse relationship between tension and wall thickness.
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