Select the incorrect statement : [2016]a)FSH stimulates the serto...
(c) Considering the female reproductive endocrinology, ovulation is the process of the monthly release of the viable oocyte from the ovary between the time of menarche and menopause. During this time, there is a surge in the production of LH and FSH, termed as gonadotropins, thereby initiating estradiol and progesterone secretion from the ovary. Both these hormones are very important for the menstrual cycle.
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Select the incorrect statement : [2016]a)FSH stimulates the serto...
Explanation:
Follicular phase is the first phase of the menstrual cycle which starts from the first day of menstruation and lasts for about 14 days. During this phase, the follicles in the ovary mature under the influence of follicle-stimulating hormone (FSH) secreted by the anterior pituitary gland. The maturing follicles produce estrogen which stimulates the endometrial lining of the uterus to thicken. The incorrect statement is c) LH and FSH decrease gradually during the follicular phase.
Reason:
During the follicular phase, the levels of FSH and LH increase gradually until a peak is reached, which triggers ovulation. The peak level of LH triggers the rupture of the mature follicle and the release of the ovum. After ovulation, the remaining follicle transforms into the corpus luteum which secretes estrogen and progesterone. The levels of FSH and LH decrease gradually during the luteal phase, which follows ovulation. If fertilization does not occur, the corpus luteum degenerates, and the levels of estrogen and progesterone decrease, leading to the onset of menstruation.
Select the incorrect statement : [2016]a)FSH stimulates the serto...
In follicular phase of menstrual cycle. LH and FSH increase gradually and stimulate follicular development as well as secretion of estrogens by the growing follicles.