Advertisements
Advertisements
प्रश्न
Briefly describe the secretory phase of the menstrual cycle.
उत्तर
Secretory phase begins after ovulation. Corpus luteum the remnants of graafian follicle under influence of LH secretes hormones namely progestrone and estrogen. Both LH and progestrone help in further growth and thickening of endometrium and its gland become secretory endometriums fully ready for the attachment and nourishment of blastocyst. In case high presence of progestrone reduce the level of LH and FSH which result in reduced synthesis of progestrone. Endometrium breakdown and moves out in the form of mucus and blood. Corpus luteum degenerate into white body called corpus albicans.
APPEARS IN
संबंधित प्रश्न
Give a significant point of difference between Oestrous and Menstrual cycle.
Give Technical Term:
The phase in the menstrual cycle in which the remnant of a follicle in the ovary turns to corpus luteum.
Describe the phases of the menstrual cycle and their hormonal control.
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Name the ovarian hormone and the pituitary hormone that have caused the above-mentioned events.
____________ is transformed to corpus luteum during luteal phase of the menstrual cycle.
A human female reaches menopause aroung the age of ______.
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. |
For subject 2 it is observed that the peak for hormone B has reached the plateau stage. After approximately how much time will the curve for hormone B descend?
Mention the importance of LH surge during menstrual cycle.
Observe the figure and label it properly.
- Name the hormone that regulates the cycle.
- Name the phases in this cycle.
- What is the duration of ovulation phase?
- What happens if implantation occurs?
- What happens if implantation does not occur?
The egg is passed down through the oviduct by muscular contractions.
