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What is germinal vesicle?
The germinal vesicle is a large, prominent nucleus found in the immature oocyte (egg cell) of female animals. It contains the genetic material of the cell and is essential for the early stages of oocyte maturation and development.
Is the letter for the hormone that stimulate ovulation?
LH Leutenizing hormone- it stimulates the release of the oocyte into the fallopian tube, i.e. ovulation. [Do not confuse with FSH- follicle stimulating hormone, which stimulates the growth/maturation of the follicle containing the oocyte IN the Ovary.]
What is the letter abbreviation for hormone that stimulates ovulation?
LH Leutenizing hormone- it stimulates the release of the oocyte into the fallopian tube, i.e. ovulation. [Do not confuse with FSH- follicle stimulating hormone, which stimulates the growth/maturation of the follicle containing the oocyte IN the Ovary.]
Difference between primary and secondary oocyte?
Any oogonia that has arrested itself in meiosis I prophase-dipotene on the onset of OMI (oocye maturation inhibition) hormone in the 3rd month of pregnancy and there after is a primary oocyte. On the urge of Leutinizing hormone which induces the pre-ovulatory phase, the primary oocyte completes meiosis I and arrests itself in meiosis II metaphase, which would only be completed if fertilization occurs, otherwise it will degenrate in 24 hours. On the completion of meiosis I, a SECONDARY oocyte and forst polar body is going to be formed.
What has the author George Anthony Paleos written?
George Anthony Paleos has written: 'The role of calcium in the regulation of meiotic maturation in the mouse oocyte' -- subject(s): Physiological effect, Calcium, Oocytin, Meiosis
What is the function of follicile cells of corona radiata?
Although its main aim is to supply vital proteins to the cell, its FUNCTION is to convey cortical efferents and afferents.Source: http://www.sylvius.com/search in "main" for corona radiata and you will get the answer as cited above
What is the oocyte formation?
oogenesis is the development and maturation of the ovum, a process which occurs within the female reproductive system.
What layers do sperm penetrate to fertilize the oocyte?
Sperm penetrate through the zona pellucida, an acellular glycoprotein layer surrounding the oocyte, to reach the oocyte membrane for fertilization. The sperm then binds to specific receptors on the oocyte membrane to release enzymes that help in penetrating the oocyte membrane to fuse with the oocyte.
When a primary oocyte divides a secondary oocyte and what are produced?
A primary oocyte divides into a secondary oocyte and a polar body during meiosis I. The secondary oocyte undergoes meiosis II to produce a mature ovum (egg) and another polar body.
What is the formation of eggs in the ovaries?
The formation of eggs in the ovaries occurs through a process called oogenesis. This process begins with primordial germ cells that develop into oogonia, which undergo mitosis and eventually transform into primary oocytes. These primary oocytes enter meiosis but are arrested in prophase I until puberty, when hormones trigger their maturation. Each menstrual cycle typically results in the completion of meiosis for one primary oocyte, producing a secondary oocyte and a polar body, with the secondary oocyte being released during ovulation.
When the primary oocyte divides a secondary oocyte and what else is produced?
The primary oocyte divides into a secondary oocyte and a polar body during meiosis I. The secondary oocyte then goes through meiosis II to produce a mature ovum (egg) and another polar body.
What is the zona pellucida?
The zona pellucida is a glycoprotein matrix surrounding the oocyte (egg cell) in mammals. It plays a crucial role in fertilization by facilitating sperm binding and preventing polyspermy, which is the fertilization of an egg by multiple sperm. The zona pellucida also provides protection to the developing embryo and aids in the process of implantation into the uterine wall. Additionally, it is involved in the signaling processes that regulate oocyte maturation and developmental competence.
