Question

Assertion (A): Neurohypophysis of the pituitary gland releases a hormone, which is helpful for child birth.
Reason (R): Neurohypophysis releases relaxin, which contracts the uterine muscles during child birth.

• A. A and R are true. R is correct explanation for A.
• B. A and R are true. But R is not correct explanation for A.
• C. A is true. But R is false.
• D. A is false. But R is true.

Hint:

Oxytocin is the hormone released by the neurohypophysis that stimulates uterine contractions during labor.

Answer 1

The Correct Option is C

The assertion is correct: the neurohypophysis (posterior pituitary) releases oxytocin, which helps in childbirth by stimulating uterine contractions.
However, the reason is false because relaxin is released from the ovaries, not the neurohypophysis. Relaxin helps in relaxing the pelvic ligaments, not contracting the uterine muscles.
Final Answer:
A is true. But R is false.