Oocyte selection
Oocyte Selection
Oocyte selection (pronounced: oh-oh-site se-lek-shun) is a crucial process in reproductive biology that involves the selection of a mature oocyte (or egg cell) for fertilization.
Etymology
The term "oocyte" is derived from the Greek words "oion" meaning egg and "kytos" meaning cell. "Selection" comes from the Latin "selectio", which means choosing or picking out.
Process
Oocyte selection begins with the process of oogenesis, where the female body produces a finite number of oocytes. These oocytes remain in a state of meiotic arrest until the onset of puberty. Every menstrual cycle, a group of oocytes, known as a cohort, is recruited for potential ovulation. However, usually only one oocyte from this cohort is selected for ovulation, while the rest undergo atresia, a process of programmed cell death.
The selection of the oocyte is influenced by several factors, including the size of the oocyte, the health of the surrounding cumulus cells, and the levels of certain hormones, such as follicle-stimulating hormone (FSH) and luteinizing hormone (LH).
Related Terms
- Oogenesis: The process of female gamete formation.
- Meiotic arrest: A halt in the cell cycle during meiosis.
- Cohort: A group of oocytes recruited for potential ovulation.
- Atresia: The process of programmed cell death in oocytes.
- Cumulus cells: The cells surrounding an oocyte.
- Follicle-stimulating hormone (FSH): A hormone that influences the growth and maturation of follicles.
- Luteinizing hormone (LH): A hormone that triggers ovulation.
External links
- Medical encyclopedia article on Oocyte selection
- Wikipedia's article - Oocyte selection
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