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A: Oxytocin stimulates contraction-of ut...

A: Oxytocin stimulates contraction-of uterine muscles during birth and initiates ejection of milk.
R : It is synthesjzed in the posterior lobe of pituitary.

A

If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).

B

If both Assertion & Reason are true but the reason is not the correct explanation of the assertion then mark (2).

C

If Assertion is true statement but Reason is false, then mark (3).

D

If both Assertion and Reason are false statements, then mark (4)

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding the Assertion (A)**: - The assertion states that "Oxytocin stimulates contraction of uterine muscles during birth and initiates ejection of milk." - This statement is true. Oxytocin plays a critical role in childbirth by stimulating uterine contractions, which help in the delivery process. Additionally, it is involved in the milk ejection reflex during breastfeeding. 2. **Understanding the Reason (R)**: - The reason provided is "It is synthesized in the posterior lobe of the pituitary." - This statement is false. Oxytocin is actually synthesized in the hypothalamus, not in the posterior lobe of the pituitary gland. The posterior pituitary gland stores and releases oxytocin but does not synthesize it. 3. **Conclusion**: - Since the assertion is true and the reason is false, we conclude that the correct relationship is that the assertion is true, and the reason is false. ### Final Answer: - Assertion (A) is true. - Reason (R) is false.
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