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Which hormone shows the highest peak during the luteal phase?

A.

Progesterone

B.

LH

C.

FSH

D.

Estrogen

Answer and Explanation

The Correct Answer is A

A. Progesterone: During the luteal phase, the corpus luteum produces the highest levels of progesterone, which is crucial for preparing the uterine lining for potential implantation.

B. LH: Luteinizing hormone (LH) peaks just before ovulation, not during the luteal phase.

C. FSH: Follicle-stimulating hormone (FSH) is primarily active during the follicular phase and has lower levels during the luteal phase.

D. Estrogen: While estrogen levels do rise during the luteal phase, they do not peak as high as progesterone does.


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Related Questions

Correct Answer is C

Explanation

A. Reabsorption of potassium ions: Potassium reabsorption occurs in the nephron, not in the bladder.

B. Secretion of hormones: The bladder does not secrete hormones; its primary function is to store urine.

C. Storage of urine: The bladder is responsible for storing urine before it is excreted from the body.

D. Filtration of urine: Filtration occurs in the kidneys, specifically in the glomerulus, not in the bladder.

Correct Answer is C

Explanation

A. Prostate: The prostate gland contributes to the semen volume but only about 20-30%. It produces a fluid that nourishes sperm and helps transport them but is not the primary contributor to the total volume of semen.

B. Ductus Deferens: The ductus deferens (vas deferens) is a tube that transports sperm from the epididymis to the ejaculatory duct. It does not produce or contribute to the volume of semen.

C. Seminal Vesicle: The seminal vesicles contribute approximately 60% of the total semen volume. They secrete a fluid that is rich in fructose and other substances that provide energy for sperm and help in the formation of semen.

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