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Which hormone stimulates the mammary gl...

Which hormone stimulates the mammary glands to eject out milk during sucking of milk by baby after parturition

A

Progesterone

B

Oxytocin

C

Prolactin

D

Relaxin

Text Solution

AI Generated Solution

The correct Answer is:
**Step-by-Step Solution:** 1. **Identify the Context**: The question asks for the hormone that stimulates the mammary glands to eject milk during suckling after childbirth (parturition). 2. **Understand the Function of Hormones**: We need to focus on hormones that are involved in milk ejection. The process of milk ejection is known as the "let-down reflex," which is crucial for breastfeeding. 3. **Consider Relevant Hormones**: - **Oxytocin**: This hormone is known for its role in childbirth and lactation. It stimulates the smooth muscles of the mammary glands to contract, leading to the ejection of milk. - **Prolactin**: This hormone is responsible for milk production but does not play a direct role in the ejection of milk. - **Progesterone**: This hormone is involved in maintaining pregnancy and does not directly affect milk ejection. - **Relaxin**: This hormone helps to relax the uterine ligaments during pregnancy and is not involved in lactation. 4. **Determine the Correct Answer**: Based on the functions of the hormones, oxytocin is the hormone that stimulates the mammary glands to eject milk during suckling. Therefore, the correct answer to the question is oxytocin. 5. **Final Answer**: The hormone that stimulates the mammary glands to eject out milk during suckling by the baby after parturition is **oxytocin**. ---
**Step-by-Step Solution:** 1. **Identify the Context**: The question asks for the hormone that stimulates the mammary glands to eject milk during suckling after childbirth (parturition). 2. **Understand the Function of Hormones**: We need to focus on hormones that are involved in milk ejection. The process of milk ejection is known as the "let-down reflex," which is crucial for breastfeeding. 3. **Consider Relevant Hormones**: - **Oxytocin**: This hormone is known for its role in childbirth and lactation. It stimulates the smooth muscles of the mammary glands to contract, leading to the ejection of milk. ...
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