Question

Choose the correct answer from the alternatives given.
Which of the following hormone induces contraction of uterine wall during child birth?

• A. Somatotropic hormone
• B. Oxytocin
• C. Thyroxine
• D. Parathormone

Answer 1

The correct option is B Oxytocin

(A) Somatotrophic hormone or Growth hormone is a peptide hormone that stimulates growth, cell reproduction etc.

(B) Oxytocin acts on the smooth muscles of our body and stimulates their contraction. In females, it stimulates a vigorous contraction of the uterus at the time of childbirth, and milk ejection from the mammary gland.

(C) Thyroxine is a hormone produced by the thyroid gland.

(D) Parathormone is a hormone released by the parathyroid gland. The secretion of PTH is regulated by the circulating levels of calcium ions.

So the correct answer is oxytocin.