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Transformation of the mature ovarian follicle and its theca interna into a corpus luteum after ovulation; formation of luteal tissue, which appears yellow in some species.
luteinization/lu·te·in·iza·tion/ (-in″ĭ-za´shun) the process by which a postovulatory ovarian follicle transforms into a corpus luteum through vascularization, follicular cell hypertrophy, and lipid accumulation, the latter in some species giving the yellow color indicated by the term.
Etymology: L, luteus, yellow
the formation of the corpus luteum from an ovarian follicle that has recently discharged an ovum. The process involves the hypertrophy of the follicular lutein cells and the development of blood vessels and connective tissue at the site.
Transformation of the mature ovarian follicle and its theca interna into a corpus luteum after ovulation.
the process taking place in the follicle cells of graafian follicles that have matured and discharged their egg: the cells become hypertrophied and there is vascularization and lipid accumulation (the latter in some species giving a yellow color), the follicles becoming corpora lutea.