The egg (oocyte) develops within a follicle in the ovary. This follicle ( derived from the Latin word for nest) is a thin-walled structure containing fluid, with the egg attached to the wall. Usually, only one follicle develops per month. This follicular growth can be monitored by vaginal ultrasound scanning.
The glycoprotein layer between the oocyte and the granulosa cells of an ovarian follicle is called the zona pellucida. It plays a crucial role in mediating interactions between the oocyte and surrounding cells during ovulation and fertilization.
primary follicle/oocyte
follicle cells
graafian follicle
in the Vesicular (Graafian) follicle
Oocyte retrieval for in vitro fertilization from a donor by means of a follicle puncture cpt code?
they are 2 difrent thing
A primary follicle consists of a primary oocyte surrounded by a single layer of enlarged cuboidal epithelium. Recall that previously, there was a primary oocyte in a primordial follicle surrounded by a thinner single layer of squamous follicular cells.
a surge in the level of the luteinizing (LH) hormone.
Follicle development occurs in several stages: primordial follicle, primary follicle, secondary follicle, preantral follicle, antral follicle, and mature (Graafian) follicle. Each stage involves specific changes in the follicle and oocyte as they mature towards ovulation.
secondary follicle
Yes, although the odds are lower. A dominant follicle is a single follicle with a maturing oocyte in it that is much larger than all the other follicles that started to develop in this cycle. The dominant follicle is the one that will eventually rupture and release a fertile oocyte, so not having a dominant follicle means the cycle is more likely to not be a fertile cycle.