Estrogen is secreted by :-a)Corpus albicansb)Corpus Callasumc)Corpus Luteumd)Cell of graffian folliclesCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

The Graafian follicle is a mature fluid-filled cavity within which an ovum develops before the ovulation. Once the ovarian follicle gets a ruptured, the theca interna cells differentiate into the theca lutein cells of the corpus luteum and secrete estrogen.

Answer

Estrogen is secreted by follicles on the ovaries and is also secreted by the corpus luteum after the egg has been released from the follicle and from the placenta. Follicle-stimulating hormone (FSH) stimulates the ovarian production of estrogens by the granulosa cells of the ovarian follicles and corpora lutea. Hence estrogen is secreted by Ovaries...!!

Answer

Estrogen is secreted by follicles on the ovaries and is also secreted by the corpus luteum after the egg has been released from the follicle and from the placenta.
Follicle-stimulating hormone (FSH) stimulates the ovarian production of estrogens by the granulosa cells of the ovarian follicles and corpora lutea.
Hence estrogen is secreted by Ovaries.

Answer

OESTROGEN are primarily PRODUCED by OVARIES.They are released by GRAFFIAN FOLLICLES on the ovaries and also SECRETED by CORPUS LUTEUM after the egg has been released from the follicle and from the placenta

but graffian follicle remain is corpus luteum,and they are considered as CELLS OF GRAFFIAN FOLLICLES

Answer

Estrogen is secreted by the cells of graffian follicles.

Estrogen is a hormone that plays a crucial role in the female reproductive system. It is primarily responsible for the development and regulation of the female secondary sexual characteristics, as well as the menstrual cycle.

Estrogen is secreted by the cells of the graffian follicles, which are the mature ovarian follicles. These follicles are structures within the ovaries that contain an immature egg or oocyte. The maturation of the follicles is a complex process that involves several stages.

Understanding the process:

1. Primordial Follicle: At birth, the ovaries contain millions of primordial follicles, which are composed of an immature egg surrounded by a single layer of cells. These follicles remain dormant until puberty.

2. Primary Follicle: During puberty, some primordial follicles are stimulated to develop further. The granulosa cells surrounding the oocyte multiply, forming several layers. This structure is now called a primary follicle.

3. Secondary Follicle: The primary follicle further develops into a secondary follicle. The granulosa cells continue to proliferate, and a fluid-filled cavity called the antrum begins to form.

4. Graffian Follicle: As the secondary follicle grows, it eventually becomes a graffian follicle. The antrum enlarges, and the oocyte is pushed towards one side of the follicle. The cells surrounding the oocyte form a mound called the cumulus oophorus.

5. Ovulation: At a certain point in the menstrual cycle, the graffian follicle ruptures, releasing the mature egg into the fallopian tube. This process is known as ovulation.

6. Corpus Luteum Formation: After ovulation, the remaining cells of the graffian follicle undergo a transformation and form a structure called the corpus luteum. The corpus luteum secretes hormones, including estrogen and progesterone.

Role of Estrogen:

Estrogen plays numerous roles in the female body, including:

1. Development of Secondary Sexual Characteristics: Estrogen is responsible for the development of breasts, widening of hips, and distribution of body fat in a female pattern.

2. Regulation of the Menstrual Cycle: Estrogen, along with other hormones, regulates the menstrual cycle by promoting the growth and thickening of the endometrium (the lining of the uterus) during the follicular phase.

3. Maintenance of Bone Health: Estrogen helps maintain bone density by inhibiting bone resorption and promoting bone formation.

4. Maintenance of Vaginal Health: Estrogen helps maintain the thickness, elasticity, and lubrication of the vaginal lining.

In conclusion, estrogen is secreted by the cells of graffian follicles, which are the mature ovarian follicles. These follicles undergo a series of stages of development, culminating in the release of the mature egg during ovulation. Estrogen plays a crucial role in various aspects of female reproductive health and development.

Similar NEET Doubts

In mammals the estrogens are secreted by the Graafian follicle from its :A:External theca B:Internal theca C:Zona pellucida D Corona radiata?

Select the incorrect statement.

Which one is correct for mammalian testis?

What is the role of the corpus luteum during the menstrual cycle?

Onkar was attending a Biology exam where the teacher drew a diagram of an ovary with numerous follicles. Onkar was able to identify the following four follicles in the ovary. Which of the mentioned follicles by him is incorrect?

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