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प्रश्न
Differentiate between the graafian follicle and corpus luteum.
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उत्तर
| Sr. No. | Feature | Graafian Follicle | Corpus Luteum |
| 1. | Definition | It is the final, mature stage of a developing ovarian follicle that contains a secondary oocyte. | It is a temporary endocrine structure formed from the remains of the graafian follicle after ovulation. |
| 2. | Timing | It is present in the ovary before ovulation occurs during the follicular phase of the menstrual cycle. | It is formed after ovulation occurs during the luteal phase of the menstrual cycle. |
| 3. | Hormonal Secretion | It primarily secretes the hormone estrogen, which helps thicken the uterine lining. | It primarily secretes progesterone, which is essential for maintaining the pregnancy. |
| 4. | Physical Appearance | It appears as a large, fluid-filled sac containing a cavity called the antrum. | It appears as a yellowish mass of cells (due to the pigment lutein) and is a solid structure. |
| 5. | Biological Fate | Its fate is to rupture to release the egg (ovum) into the fallopian tube. | If fertilization does not occur, it degenerates into a white fibrous tissue called corpus albicans. |
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संबंधित प्रश्न
Why does menstruation occur?
State the function of Fallopian tubes.
Fill in the blank:
Lower part of uterus is called _________.
Complete the paragraph with the help of words given in the bracket.
(Luteinizing hormone, endometrium of uterus, follicle stimulating hormone, estrogen, progesterone, corpus luteum)
Growth of follicles present in the ovary occurs under the effect of ______. This follicle secretes estrogen. ______ grows/regenerates under the effect of estrogen. Under the effect of ______, fully grown up follicle bursts, ovulation occurs and ______ is formed from remaining part of follicle. It secrets ______ and ______. Under the effect of these hormones, glands of ______ are activated and it becomes ready for implantation.
Why is zona pellucid retained around the egg till it reaches the uterus?
Complete the following sentences with appropriate word:
The female equivalent of the penis is the _______.
State the Location:
Bartholin’s glands.
The _______ is also called the womb.
Observe the diagram and answer the following questions.
- Label the indicated parts 1, 2 and 3 in the diagram.
- Where the fertilization of ovum occurs?
- Where does the embryo get implanted after fertilization?
After fertilization the ovary develops into ______.
What is the other term used for fallopian tube?
Which of the following are accessory ducts of female reproductive system?
Primordial follicle cells undergo mitotic division to produce ______.
All are internal genitalia in females. EXCEPT ______.
In oocyte secondary maturation occurs in ______.
When the foetus is growing inside the uterus it needs nutrients. Which part provides these nutrients?
Fertilization occurs in human females when the sperms and ovum reach simultaneously at ______
How does fertilisation take place? Fertilisation occurs once in a month. Comment.
Explain how the uterus and placenta provide necessary conditions for proper growth and development of the embryo after implantation?
Given below is a certain situation. Analyze and describe its possible impact on a person:
Egg is not fertilised in a human female.
