Question

About which day in a normal human menstrual cycle does the rapid secretion of LH (Popularly called LH- surge) normally occurs
A. 14th day
B. 20th day
C. 5th day
D. 11th day

Answer 1

Menstruation is additionally referred to as weeping of the uterus (female internal reproductive organ). It involves the regular discharge of blood and (tissue layer) mucosal tissue (known as menses) from the inner lining of the (female internal reproductive organ) vagina through the canal.

Complete step by step answer: Monthly bleeding is seen in females on the onset of puberty which is referred to as menstruation. Girls normally begin having periods between the ages of eleven to fourteen. It's the flow of blood and tissue from the lining of the uterus, this happens if the ovum is unfertilized. The unfertilized egg cell is then sloughed off alongside the female internal reproductive organ lining and therefore the ladies bleed.
-Ovulation is said to be the second phase of the ovarian cycle within which a mature egg is free from the ovarian follicles into the uterine tube (also known as the oviduct). Once the egg has nearly matured, the level of oestradiol becomes the most and beyond the optimum level, this impact is reversed and estrogen stimulates the assembly of huge amounts of LH.
-Both LH and FSH attain a peak level within the middle of the menstrual cycle (about the fourteenth day). Faster secretion of LH results in its most level throughout the mid-cycle referred to as LH surge. It induces the rupture of the Graafian follicle and thereby the discharge of gamete (ovulation). This process is known as LH-surge and it starts around day thirteenth of the typical 28th-day cycle and will last for twenty-four to forty-eight hours.
So, the proper answer is option A '14th' day.

Note: The onset of menses is also known as menarche and menopause is the time once the menses stops for good. The length of the time between 1st and the primary day also of the succeeding period is sometimes twenty-eight days.