NEET 2025, Biology Q15: Endocrine Glands and Hormones
NEET2025Biology
Q.
Consider the following statements regarding function of adrenal medullary hormones :
(A) It causes pupilary constriction.
(B) It is a hyperglycemic hormone.
(C) It causes piloerection.
(D) It increases strength of heart contraction.
Choose the correct answer from the options given below :
- A
D only
- B
C and D only
- C
B, C and D only
- D
A, C and D only
Solution
The adrenal medulla secretes adrenaline (epinephrine) and noradrenaline — the “emergency” hormones. Their typical sympathetic effects:
- (A) Incorrect — they cause pupillary dilation, not constriction.
- (B) Correct — they stimulate glycogenolysis, raising blood glucose (hyperglycemia).
- (C) Correct — they cause piloerection (raising of body hair).
- (D) Correct — they increase the strength and rate of heart contraction.
B, C and D are correct.
Concept behind this question
Endocrine Glands and HormonesNotes, formulas and examples →More previous year questions on Endocrine Glands and Hormones
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