The main hormone secreted by a corpus luteum is:

a. Human chorionic gonadotropin
b. Luteinizing hormone
c. Oxytocin
d. Progesterone
e. Prolactin


ANS: D
Corpora lutea, which originate from an ovulated follicle, secrete progesterone to maintain the re-ceptivity of the uterine endometrium for the implantation of a zygote.

Anatomy & Physiology

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