In human embryogenesis, the theca cells form a corpus luteum after a Graafian follicle has expelled its secondary oocyte arrested in second meiosis.
32.
The hormones produced by the corpus luteum also suppress production of the FSH and LH that the corpus luteum needs to maintain itself.
33.
If pregnancy does occur, the corpus luteum continues to function ( and maintain high BBTs ) for the first trimester of the pregnancy.
34.
Theca cells are located in the ovarian follicles and become luteinized when the ovarian follicle breaks and a new corpus luteum is formed.
35.
The theory behind the concept suggests that an inadequate amount of progesterone is produced by the corpus luteum to maintain the early pregnancy.
36.
This steroid is primarily produced in the adrenal glands and to some degree in the gonads, specifically the corpus luteum of the ovary.
37.
Human chorionic gonadotropin interacts with the LHCG receptor of the ovary and promotes the maintenance of the corpus luteum during the beginning of pregnancy.
38.
The corpus luteum continues this paracrine action for the remainder of the menstrual cycle, maintaining the endometrium, before disintegrating into scar tissue during menses.
39.
For the first 7 9 weeks in humans, the corpus luteum secretes the progesterone necessary to maintain the viability of the endometrium for pregnancy.
40.
A corpus luteum cyst will cause BBTs to stay elevated and prevent menstruation from occurring until it resolves, which could take weeks or months.
