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प्रश्न
Describe the structure of a Graafian follicle.
Explain the structure of a Graafian follicle.
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उत्तर
- The Graafian follicle is a mature ovarian follicle.
- The secondary oocyte is positioned off to the side and is surrounded by a layer called zona pellucida, which is not made of cells and is produced by the oocyte’s vitelline membrane.
- There are three layers covering the Graafian follicle. They are as follows:
- Theca externa is the name for the outermost protective and fibrous covering.
- Inner to it is cellular theca interna which produces the hormone estrogen.
- Inner to the theca interna are the follicular cells from the membrane granulosa.
- From the membrane granulosa, the cells differentiate into discus proligerus and the corona radiata cells.
- Cumulus oophorus is the term used for the oocyte and surrounding granulosa cells.
- A fluid-filled cavity called the antrum lies between the oocyte and the membrane granulosa.
- It is filled with a fluid called liquor folliculi.
संबंधित प्रश्न
Which hormones regulate menstrual cycle?
the Biological/technical term for Complete stoppage of menstrual cycle in females
Give Reasons
Missing of menses is the first indication of pregnancy.
Follicle stimulating hormone : Development of oocyte : : Luteinizing hormone : ____________
A biology student after studying the different levels of hormones during the menstrual cycle was comparing 2 subjects (Patients). A table was created after looking at the levels of hormones A and B for Subjects 1 and 2. Read the information in the table and answer the question that follows.
| HORMONE A | HORMONE B | |
| Subject 1 | Shows a peak on the 14th Day of the menstrual cycle. | Falls down during the luteal phase. |
| Subject 2 | Shows a peak on the 14th Day of the menstrual cycle. | The level is maintained high in the luteal phase. |
If the peak of Hormone A does not appear in the study for Subject 1, which of the following statement is true?
Define ovulation.
Menstruation is triggered by an abrupt decline in the amount of ______.
The menstrual cycle begins with ______
The onset of menstruation in a human female is called ______.
Which of the following statements are correct regarding female reproductive cycle?
- In non-primate mammals cyclical changes during reproduction are called oestrus cycle.
- First menstrual cycle begins at puberty and is called menopause.
- Lack of menstruation may be indicative of pregnancy.
- Cyclic menstruation extends between menarche and menopause.
Choose the most appropriate answer from the options given below:
