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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.
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Which hormone assumes a role in the development and discharge of a secondary oocyte?
The hormone that plays a crucial role in the development and release of a secondary oocyte is luteinizing hormone (LH). It is released by the pituitary gland and triggers ovulation, the process by which the mature ovarian follicle releases the secondary oocyte.
The zona pellucida is formed as the follicle becomes a secondary follicle True or False?
False. The zona pellucida is formed as the primary oocyte within the primordial follicle begins to grow and develop into a secondary follicle.
An ovarian follicle that has multiple layers of granulose cells that surround the oocyte and has fluid-filled vesicles but no antrum is called an?
secondary follicle
What are the stages of follicle development?
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.
Is the process by which a secondary oocyte is released from the ovary?
Ovulation
What does follicle stimulating hormone promote the development of?
primary follicle/oocyte
What surrounds a primary oocyte?
follicle cells
What is A mature ovum in its sac sometimes called is it an oocyte or a primary follicle or a graafian follicle or an ovarian follicle?
graafian follicle
Once the oocyte has been release from the follicle?
Once the oocyte has been released from the follicle, it is swept up into the fallopian tube by the fimbriae. The oocyte then begins its journey towards the uterus, where it may be fertilized by sperm if present. If fertilization occurs, the resulting embryo implants in the uterus and pregnancy begins.
What structure in the ovary contains the developing oocyte egg?
in the Vesicular (Graafian) follicle
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.
Is It the secondary oocyte and not the egg that the sperm fertilizes?
Yes, it is the secondary oocyte that the sperm fertilizes. The secondary oocyte completes meiosis II to become a mature egg only after fertilization.
