Ovulation occurs due to a surge in A. FSH concentrations. B. estrogen and FSH concentrations. C. LH concentrations. D. estrogen concentrations. E. estrogen and LH concentrations?

Ovulation occurs due to a surge in?

LH - leuteinizing hormone

The surge in luteinizing hormone that occurs during the middle of the ovarian cycle triggers?

Ovulation

Can you not have a lh surge but have an estrogen surge?

Yes.

When there is a surge of LH during the menstrual cycle what event occurs?

The ovulation takes place due to surge of luteinizing hormone. This hormone comes from the anterior lobe of the pituitary gland.

A sudden surge in lh concentration causes?

a surge of testosterone in males and it causes ovulation in females.

Lh surge indicates pregnancy?

A Lh surge (known as the luteal surge) indicates ovulation, not pregnancy. The luteal surge causes the follicle to burst which releases the egg into the body cavity, it is then drawn into the fallopian tubule where fertilization occurs. An increase in HCG indicates pregnancy, HCG in blood and urine is the first outward sign of pregnancy.

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.

When does the ova mature?

Human oocytes mature immediately after the surge of LH which occurs at ovulation. The surge of LH causes maturation of the oocyte which is the completion of the first division of meiosis.

How does the concentration of oestrogen affect and control the release of an egg during the menstrual cycle?

Pre-Ovulation (Day 2 -14)The menstrual bleeding usually lasts a few days. From Day 2 on, the body is already starting to prepare itself for the next cycle. Under the influence of Follicle Stimulating Hormone (FSH) and LH (Luteinizing Hormone) from the pituitary gland, the ovarian follicle starts to manufacture and secrete estrogen. Estrogen causes the uterine lining to grow. About 15 to 20 eggs start to mature in each ovary during this period. Each egg is encased and protected in its own follicle. The follicles also produce estrogen, the hormone necessary for ovulation to eventually occur. The level of estrogen slowly rises during this period as the uterus lining thickens and starts its preparation to receive the egg if ovulation occurs. A race progresses for one follicle to become the largest. Eventually, ovulation occurs when one ovary releases an egg from the most dominant follicle.Ovulation (Day 14-15)Although it averages about two weeks, this race to release an egg can take anywhere from about 8 days to a month or longer to complete. The key factor that determines how long it will take before you ovulate is how soon your body reaches its estrogen threshold. The high levels of estrogen will trigger an abrupt surge of Luteinizing Hormone (LH). It's this LH surge that causes the egg to literally burst through the ovarian wall, usually within a day or so of the occurrence that we called ovulation. After ovulation, the egg tumbles out into the pelvic cavity, where it is quickly transported into the fallopian tubes. The remainder of the ruptured follicle (called the corpus luteum) recedes back to the ovary and begins an important task of secreting progesterone. Why is progesterone so important? It causes an increase in blood vessels to the uterine lining in order to provide nutrients for the fetus in case fertilization occurs. It also inhibits other eggs from developing, and causes the Basal Body Temperature (BBT) to rise about half a degree.

Why is there no lh surge showing on ovulation stick but cervical mucus and ovulation pain showing otherwise?

The stick may have been defective or used incorrectly.

What is storm surge in a sentence?

We're stacking sandbags, trying to prevent any damage if any storm surge occurs.

The surge in LH secretion from the anterior pituitary that causes ovulation can be partially explained by the?

positive feedback of estradiol that increases the release of LH

Ovulation occurs due to a surge in A. FSH concentrations. B. estrogen and FSH concentrations. C. LH concentrations. D. estrogen concentrations. E. estrogen and LH concentrations?

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