Corpus luteum

Definition

The corpus luteum is a temporary endocrine structure in female ovaries that forms from an ovarian follicle after ovulation. It secretes progesterone, which prepares the uterus for a potential pregnancy.

Related terms

Ovulation:

The phase of the menstrual cycle during which a mature egg is released from an ovary into the fallopian tube for fertilization.

Progesterone:

A hormone produced by the corpus luteum and crucial for maintaining the uterine lining for pregnancy.

Follicular Phase:

The first half of the menstrual cycle when follicles in the ovary mature; ends with ovulation