Advertisements
Advertisements
प्रश्न
Explain the menstrual phase in a human female. State the levels of ovarian and pituitary hormones during this phase.
Advertisements
उत्तर
(a) The menstrual cycle is the reproductive cycle in all primates and begins at puberty (menarche).
- Menses takes place on the 3rd–5th day of the menstrual cycle of 28 days.
- The production of LH is considerably reduced.
- This causes degeneration of the corpus luteum and reduction in the production of progesterone and oestrogen.
- The uterine endometrium breaks down and menstruation starts.
- Cells of the endometrium, secretions, blood and the unfertilised ovum constitute menstrual flow.
During this phase, the levels of ovarian and pituitary hormones are low.
APPEARS IN
संबंधित प्रश्न
Give appropriate terms for each of the following process:
Fixing of developing zygote (blastocyst) on the uterine wall.
Explain the role of hormones during the menstrual cycle.
Complete the following sentences with appropriate word:
The human gestation period is about ____________.
Follicle stimulating hormone : Development of oocyte : : Luteinizing hormone : ____________
Progesterone peaks during which phase of the menstrual cycle?
The life of corpus luteum is generally about ______ days in the absence of pregnancy
In humans, the menstrual cycle is generally of ______.
The temporary endocrine gland in humans is ______.
Which one of the following is the most likely root cause why menstruation is not taking place in regularly cycling human female?
The onset of menstruation in a human female is called ______.
