During ovulation, peak plasma concentration(s) of Which of the following Hormone(s) will be reached?
- 1i. Progesterone.
- i11. Follicle – stimulating hormone (FSH).
- i111. Luteinizing hormone (LH).
- A) 1 only
- B) 111 only
- C) 1 and 11 only
- D) 11 and 111 only***
- E) 1,11 and 111.
The correct answer is D) 11 and 111 only.
During ovulation, the peak plasma concentration of luteinizing hormone (LH) is reached. This triggers the release of the egg from the ovary. The peak plasma concentration of progesterone is reached a few days after ovulation.
Follicle-stimulating hormone (FSH) is involved in the early stages of follicle development, but its plasma concentration does not peak at the time of ovulation.
Therefore, the only hormones that reach peak plasma concentration during ovulation are LH and progesterone.
Hormone changes during ovulation:
Here is a summary of the hormone changes that occur during ovulation:
- Follicle-stimulating hormone (FSH):
FSH levels rise in the early stages of the menstrual cycle to stimulate the development of follicles in the ovaries. FSH levels peak around the middle of the cycle and then decline.
- Luteinizing hormone (LH):
LH levels rise sharply in the middle of the cycle, triggering the release of an egg from the ovary. This is known as the LH surge. LH levels then decline after ovulation.
- Progesterone:
Progesterone levels begin to rise after ovulation and reach a peak a few days later. Progesterone helps to prepare the lining of the uterus for implantation of a fertilized egg.
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