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The ovulating hormone that causes the follicle to rupture and the egg to be expelled is?
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∙ 10y ago
Luteinizing Hormone (LH)
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∙ 10y ago
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What is a rupture of the graafian follicle known as?
When ovulation occurs, the graafian follicle(s) rupture. The oocyte with surrounding cumulus cells (COC's) are expelled into the infundibulum and transported to the site of fertilization. Before and during the rupture of the graafian follicle, blood vessels will rupture too, which causes hemorrhaging. So the structure that is left behind after the oocyte is expelled, is called a corpus hemorrhagicum.
What anterior pituitary hormone causes the enlarged ovarian follicle to rupture and release a mature ovum?
Luteinizing hormone released by the anterior pituitary causes the enlarged ovarian follicle to rupture.
Which hormone stimulates egg release?
Ovulation, that is a process by which a mature ovarian follicle releases an ovum, is triggered by the spike in the amount of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) released from the anterior lobe of the pituitary gland.
Which hormone spikes midway through the menstrual cycle and triggers ovulation?
Luteinizing hormone (LH) Luteinizing hormone (LH) secreted by the pituitary gland causes the mature ovarian follicle to rupture, a process called ovulation. -masteringbiology.com
What hormone is secreted by the follicle wall during ovulation?
In the late maturation follicular phase, the dominant follicle level secretion of estrogen crosses a certain threshold stimulating Luteinizing Hormone (LH) secretion, which in turn stimulates more estrogen production by the follicle. The result is a rapid increase in LH secretion, the LH surge, and therefore triggers the rupture of the dominant follicle, in other words, ovulation.
Do low levels of FSH and LH affect fertility?
Yes, low levels of both hormones could affect fertility, generally negatively. FSH stands for follicle stimulating hormone - without the constant stimulation of this hormone, a follicle will not develop to the point of being a fertile egg or oocyte. LH stands for luteinizing hormone and is the hormone responsible for causing a fertile oocyte to rupture from the ovary and travel into the Fallopian tube where it can be fertilized.
After how much time does the mature follicle rupture after administering injection ovutrig?
36 to 48 hrs....
What phase of the ovarian cycle does a spike in LH cause the follicle to rupture and release the ovum?
Luteal phase
What is the function of follicle cells?
In females, it promotes the development of egg-containingfollicles in ovaries and stimulates follicular cells to secrete estrogen.In males, it stimulates production of sperm cells.
Is there any chance of pregnancy after no dominant follicle seen?
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.
What hormones cause a thickening of the endometrium to prepare for pregnancy?
PROGESTERONE and ESTROGEN. Under the influence of Hypothalamus, Pituitary gland starts secreting the hormone Follicle Stimulating Hormone (F.S.H.) after menses. Witch stimulates few follicles from Ovaries to enlarge. These in turn secretes the hormone Estrogen, witch brings about the changes in Endometrium (Inner wall of Uterus.)called Proliferative stage. Usually on day 14 of menses, Follicle ruptures under the influence of Leutenizing Hormone from Pituitary gland , liberating Ovum in Peritoneal cavity. Witch is taken up by Fallopian tube and if fertilized, get embedded in Uterus on day 8, usually. After rupture of Follicle it becomes Corpus Lute-um.(White body.) Witch secretes the Hormone Progesterone as well as Estrogen. Unruptured Follicles also continue to secrete Estrogen. Together they bring about the change in Endometrium for implantation of Fertilized Ovum by making it thick called as Secretary stage.
Where does corpus luteum develop?
The corpus luteum is formed from the ovary. The pituitary gland increases its production of the second hormone, luteinizing hormone (LH). This second hormone allows the mature egg to rupture from the ovary (called ovulation) and enter into the uterine tube. The postovulatory phase has begun. LH also encourages the formation of a "scar" within the ovary. This "scar" is called the corpus luteum, and it produces the hormone progesterone.
