Intermediate
Technical
IVT
Corpus Luteum
Pronunciation: KOR-pus LOO-tee-um
A temporary endocrine structure formed from the ovulated follicle that produces progesterone to support early pregnancy.
Full Definition
The corpus luteum develops from the follicle after ovulation and is essential for maintaining the luteal phase of the menstrual cycle and early pregnancy. It secretes progesterone and estrogen, preparing the endometrium for implantation and supporting early embryonic development. In assisted reproduction, corpus luteum function may be supplemented with exogenous progesterone. If pregnancy does not occur, the corpus luteum degenerates, leading to menstruation.
Usage
Usage note: Plural form is corpora lutea.
In Context
- "Multiple corpora lutea were visible on ultrasound following ovulation induction." — Ultrasound report
- "Corpus luteum support with progesterone supplementation was initiated after embryo transfer." — Treatment protocol
Also known as
yellow body
Don't confuse with
corpus albicans
follicle