Corpus Luteum Formation - Anatomy & Physiology
Introduction
Luteinisation occurs after ovulation and the collapse of the follicle. The number of corpora lutea formed in the ovary at any one time is directly proportional to the number of oocytes ovulated. Therefore many corpora lutea will be visible on the ovary of polytocous animals. During Luteinisation there is an increase in both the size and weight due to hyperplasia (increase in cell number) and hypertrophy (increase in cell size) within the developing corpus luteum.
Process of Luteinisation
PGE2 - plasminogen - plasmin dissolve clot and remodell tissues to form corpus luteum
increase in cytoplasm increase in lutein pigment development of smooth endoplasmic reticulum. Angiogenesis - large blood supply required to supply adequate cholosterol for Progesterone formation.
Control of corpus luteum formation and development aswell as the production of Progesterone by luteal cells is regulated principally by Luteinising Hormone.