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chorionic |
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chorionic pertaining to the chorion. chorionic girdle a circular band of cells of placental origin that invade the endometrium and form the endometrial cups in the mare. chorionic girdle cells see chorionic girdle (above). chorionic gonadotropin a hormone with properties similar to those of luteinizing hormone; it is secreted in large amounts by the placenta during gestation. It stimulates the formation of interstitial cells in the testes of the fetus and causes the secretion of testosterone. It is found in substantial amounts in the urine of pregnant mares (pregnant mares serum gonadotropin—PMSG) and pregnant women (human chorionic gonadotropin—HCG). It is used as an aid in the treatments to induce ovulation and the synchronization of estrus. chorionic somatomammotropin see placental lactogen. chorionic vesicle the early embryonic vesicle before the allantois has developed and encircled the embryo to form the chorioallantoic vesicle and supplant it. |
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chorionic girdle cells
