The midcycle surge of LH that triggers ovulation also induces the formation of a (1) ____ _______ in the ovary. This yellowish, glandular structure forms by cell differentiation among (2) _________________ cells left behind in the follicle. Secretions from the (1) influence the rest of the cycle.
The corpus luteum secretes (3) _____________ and some estrogen. Progesterone prepares the reproductive tract for the arrival of a(n) (4)______________. This hormone makes cervical (5) ___________ turn thick and sticky; it may keep normal bacterial inhabitants of the (6) ____ out of the uterus. Progesterone also will maintain the (7) ____ during pregnancy.
A corpus luteum persists for about (8) _______ days. All the while, the (9) _____ is calling for minimal FSH secretion, which stops other (10) ______ form developing. If a(n) (11) _________ does not burrow into the endometrium, the corpus luteum will self-destruct during the last days of the cycle. It will secrete certain (12) _____ that apparently can disrupt is own functioning.
Following this, estrogen and (13) ________ levels in blood decline rapidly, and so the (14) _________ starts to break down. Blood as well as the sloughed endometrial tissues make up a (15) _________ flow, which continues for three to six days. Thus, the cycle begins anew. By (16) __________, the supply of oocytes is dwindling, hormone secretions slow down, and in time menstrual cycles - and fertility - will be over.
B. corpus luteum
The paragraph here is looking at the female menstrual cycle. It starts from the midcycle surge which will cause - ovulation and
- CORPUS LUTEUM formation ( remnant of the GRANULOSA CELLS).
The secretions of the Corpus luteum include - estrogen and