Question 23
Hormonal CoordinationWhich of the following is responsible for the increased heart beat of a boy who saw a python? Increased production of
- A.adrenalin
- B.insulin
- C.pituitrin
- D.thyroxin
Show the answer and explanation
Answer: A (adrenalin)
Explanation
Fear makes the adrenal glands release adrenaline, the 'fight or flight' hormone that speeds up the heart.