The hormone causing release of milk after the birth of young one is :a)Oxytocinb)relaxinc)progesteroned)ProlactinCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

The correct answer is oxytocin because oxytocin stimulates contraction of the  myoepithelial cells surrounding the alveoli which already holds milk .  the increased pressure causes milk to flow through the duct system and be released through the nipple .

Answer

Correct answer is oxytocin because prolactin regulates the formation of milk in them not release during the child birth

Answer

Answer

Answer

The correct answer is oxytocin..as per the ncert lines... oxytocin acts on smooth muscle of our body and stimulates their contraction .in female s it stimulates a vigorous contraction of uterus at time of child birth and milk ejection from mammary gland..focus on ncert...it is given on page 332..check it .hope it helps you..

Answer

Oxytocin is the answer bcz after birth it cause contraction of smooth muscle of band like cell of alveoli to release milk .

Answer

The hormone causing the release of milk after the birth of a young one is Prolactin.

Prolactin is a hormone secreted by the anterior pituitary gland in the brain. It plays a crucial role in the initiation and maintenance of lactation (milk production) in mammals, including humans. Let's explore how prolactin works and its role in milk production:

Function of Prolactin:
1. Prolactin stimulates the development of mammary glands during pregnancy.
2. After childbirth, prolactin levels rise, triggering the production of milk.
3. Prolactin promotes the synthesis of milk components such as lactose, proteins, and lipids.
4. It also inhibits the release of certain hormones like estrogen and progesterone, which can interfere with milk production.
5. Prolactin levels are regulated by a negative feedback mechanism. When the baby suckles at the breast, nerve signals from the nipple stimulate the release of more prolactin, ensuring a steady milk supply for the infant.

Mechanism of Milk Release:
The actual release of milk from the mammary glands is controlled by another hormone called oxytocin, which acts in conjunction with prolactin. When a baby suckles at the breast, the sucking action triggers the release of oxytocin from the posterior pituitary gland. Oxytocin causes the contraction of myoepithelial cells surrounding the alveoli (milk-secreting units) in the mammary gland, resulting in the ejection of milk into the ducts and eventually into the nipple.

Relation between Prolactin and Oxytocin:
Prolactin is responsible for milk production, while oxytocin is responsible for milk ejection. These two hormones work together to ensure successful breastfeeding. Prolactin stimulates milk synthesis, and oxytocin stimulates milk letdown or release. Both hormones are essential for a healthy and steady milk supply.

Conclusion:
In conclusion, the hormone that causes the release of milk after the birth of a young one is prolactin. It stimulates milk production and works in conjunction with oxytocin, which triggers the release of milk from the mammary glands. The coordinated action of prolactin and oxytocin ensures successful breastfeeding and provides the necessary nutrition for the newborn.

Answer

Secretion of milk in mammary gland is done by prolactin hormone
and ejection or release of milk this procees is done by oxytocin

Answer

D.prolactin

Answer

A hormone called Prolactin secreted by the pituitary gland in the brain is responsible for the alveoli making milk. Prolactin rises when the baby suckles. There is another hormone called Oxytocin that causes tiny muscles around the alveoli to squeeze the milk via small tubes called milk ducts.

Similar NEET Doubts

The hormone causing release of milk after the birth of young one is

Which one of the following hormone stimulates the “let-down” (releas e) of milk from the mother’s breasts when the baby is sucking ? [1996]

During bleeding phase of menstrual cycle unfertilised secondary oocyte undergoes autolysis. The interplay of hormones then is

Select the correct option- contraction of uterus and Ejection of milk control by a.Oxytocin, Oxytocin b.Oxytocin, Prolactin c.Prolactin, Prolactin d.LH, Oxytocin?

Which of the following hormones can play a significant role in osteoporesis ?

Top Courses for NEETView all

Biology Class 11

Daily Test for NEET Preparation

NEET Mock Test Series 2025

Topic-wise MCQ Tests for NEET

Physics Class 11

Top Courses for NEET

Top Courses for NEET

Suggested Free Tests

Related Content

About NEET

NEET Preparation Material

How to Prepare for NEET Exam?

NCERT Based Study Material

NEET Mock Tests

Other Popular Exams

Company