Fine structure of the corpus luteum of pregnancy in the gerbil ( Meriones unguiculatus )

摘要: Corpora lutea from gerbils on days 1, 4, 8, 12, 16, 20 and 24 of pregnancy were studied electron microscopically. Similarly, luteal tissue animals the day parturition one postpartum was (gestation: ± 8–24h). Agranular endoplasmic reticulum increases in quantity through 16 thereafter is somewhat reduced. Granular a population small granules (type I) become abundant during late their possible role production storage relaxin discussed. Luteal undergoes relatively rapid regression which begins parturition. Conspicuous regressing are large II) (possibly lysosomes), lipid droplets, leucocytic elements macrophages. Functional correlates these morphological findings