Corpus luteum is formed from:
Corpus luteum is formed from: Correct Answer Graffian follicle
Concept:
- The process of formation of a mature female gamete is called oogenesis which is markedly different from spermatogenesis.
- Oogenesis is initiated during the embryonic development stage when a couple of million gamete mother cells (oogonia) are formed within each fetal ovary; no more oogonia are formed and added after birth.
- These cells start division and enter into prophase-I of the meiotic division and get temporarily arrested at that stage, called primary oocytes.
- Primary oocytes get surrounded by granulosa cells to form Primary follicles. Primary follicles get surrounded by more layers of granulosa cells and a new theca and are called secondary follicles.
- The secondary follicle soon transforms into a tertiary follicle
- The tertiary follicle further changes into the mature follicle or Graafian follicle.
Explanation:
- The Corpus luteum is a structure formed from the Graafian follicle. After Ovulation, the ruptured Graafian follicle gets transformed into the Corpus luteum.
- The Corpus luteum gets stimulated by the rising levels of LH and starts secreting the Progesterone hormone.
- Progesterone inhibits the uterine contraction so that the pregnancy can be maintained. For this reason, it is called the pregnancy hormone.
- In case if pregnancy does not occur after ovulation the levels of progesterone fall down and Corpus luteum gets transformed into Corpus albicans.
[ alt="5ff5a59c2895331682b1c1e1 16502170309101" src="//storage.googleapis.com/tb-img/production/22/04/5ff5a59c2895331682b1c1e1_16502170309101.png" style=" height: 228px; width: 350px;">
মোঃ আরিফুল ইসলাম
Feb 20, 2025