if fertilization does not occur the corpus luteum becomes a
(a) Mature (Graafian) follicle
(b) secondary oocyte
(c) corpus albicans
(d) Primordial follicle
The corpus albicans is the final stage of the corpus luteum if pregnancy does not occur.
Here’s a simple breakdown:
-
After ovulation – The follicle turns into the corpus luteum, which secretes progesterone and estrogen.
-
If no pregnancy – The uterus releases prostaglandin F2Ξ±, which causes the corpus luteum to degenerate.
-
Corpus albicans – The dead corpus luteum is replaced by fibrous scar tissue called the corpus albicans (literally means “white body”).
-
Outcome – It has no hormonal activity. Over time, it shrinks and disappears from the ovary.
π If pregnancy does occur, hCG from the embryo keeps the corpus luteum alive, so it does not become a corpus albicans until later.
No comments:
Post a Comment