Which of the following hormones is responsible for both the milk ejection reflex and the foetal ejection reflex?
Answer: (C) Oxytocin. Answer: (c) Oxytocin Solution: Oxytocin acts on the smooth muscles of the body and stimulates their contraction.
- A.Estrogen
- B.Prolactin
- C.Oxytocin✓
- D.Relaxin
Correct Answer
(C) Oxytocin
Solution & Explanation
Answer: (c) Oxytocin Solution: Oxytocin acts on the smooth muscles of the body and stimulates their contraction. In females it stimulates vigorous contraction of the uterus at the time of child birth (the foetal ejection reflex) and milk ejection from the mammary gland (the milk ejection reflex). Hence the single hormone responsible for both reflexes is oxytocin. NCERT Reference: Chapter 19, Page 242, Line(s) 5-9 — "Oxytocin acts on the smooth muscles of our body and stimulates their contraction. In females, it stimulates a vigorous contraction of uterus at the time of child birth, and milk ejection from the mammary gland."