Consider the following statements regarding function of adrenal medullary hormones: Choose the correct answer from the options given below :
- A, C and D only
- D only
- C and D only
- B, C and D only
Answer
(4) B, C and D only
Solution
The adrenal medullary hormones (adrenaline and noradrenaline) are emergency (fight or flight) hormones.
A: They cause pupillary dilation, not constriction. Incorrect.
B: They stimulate the breakdown of glycogen, raising blood glucose, so they are hyperglycemic. Correct.
C: They cause piloerection (raising of hair). Correct.
D: They increase the heart beat and the strength of heart contraction. Correct.
Hence B, C and D are correct.
Answer: (4)