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?
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.
they are 2 difrent thing
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
Once the secondary oocyte is released from the follicle during ovulation, it enters the fallopian tube. If a sperm cell fertilizes it, the secondary oocyte completes meiosis II, resulting in a mature ovum and a second polar body. If fertilization does not occur, the secondary oocyte will eventually degenerate and be reabsorbed by the body within 24 hours.