The follicular antrum is the portion of an
ovarian follicle
An ovarian follicle is a roughly spheroid cellular aggregation set found in the ovaries. It secretes hormones that influence stages of the menstrual cycle. At the time of puberty, women have approximately 200,000 to 300,000 follicles, each with t ...
filled with
follicular fluid
Follicular fluid is a liquid which fills the follicular antrum and surrounds the ovum in an ovarian follicle. This fluid is rich in hyaluronic acid, and is used in a modified intracytoplasmic sperm injection (ICSI) called physiological ICSI (PI ...
. Appearance of the follicular antrum during follicular maturation is the first sign that a follicle has reached the next stage of maturation. It has changed from a primary follicle to a secondary follicle.
See also
*
Antrum ''This is a disambiguation page for the biological term. For the 2018 horror movie, see Antrum (film)''
In biology, antrum is a general term for a cavity or chamber, which may have specific meaning in reference to certain organs or sites in the bod ...
External links
* "Graafian Follicle"
* - "Mammal, canine ovary (LM, High)"
Description at okstate.edu
Mammal female reproductive system
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