Question:
Consider the following statements regarding the function of adrenal medullary hormones:
A. It causes pupillary constriction.
B. It is a hyperglycemic hormone.
C. It causes piloerection.
D. It increases the strength of heart contraction.
Consider the following statements regarding the function of adrenal medullary hormones:
A. It causes pupillary constriction.
B. It is a hyperglycemic hormone.
C. It causes piloerection.
D. It increases the strength of heart contraction.
A. It causes pupillary constriction.
B. It is a hyperglycemic hormone.
C. It causes piloerection.
D. It increases the strength of heart contraction.
Show Hint
Adrenal medulla = Fight or flight = Increased heart rate, glucose, piloerection.
Updated On: May 4, 2025
- B, C and D Only
- A, C and D Only
- D Only
- C and D Only
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The Correct Option is A
Solution and Explanation
The adrenal medulla releases epinephrine and norepinephrine (adrenaline and noradrenaline). These hormones prepare the body for "fight or flight" responses. They increase heart rate and contraction strength (D), stimulate glucose release from the liver (hyperglycemic effect - B), and cause piloerection (hair standing on end - C). They cause pupillary dilation, not constriction (A).
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