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Which of the following hormones, increase skin color when exposed to sunlight?

Thyroid stimulating hormone (TSH)

Melatonin

Follicle stimulating hormone (FSH)

Melanin stimulating hormone (MSH)

Answer and Explanation

The Correct Answer is D

A. TSH: Stimulates the thyroid gland; not involved in pigmentation.

B. Melatonin: Regulates sleep-wake cycles; not directly responsible for pigmentation.

C. FSH: Stimulates gonads for reproduction; unrelated to skin color.

D. MSH: Stimulates melanocytes to produce melanin, which increases skin pigmentation with sunlight exposure.

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Correct Answer is B

Explanation

A. Jaundice, implantation: Jaundice and implantation are unrelated to testes or scrotum.

B. Temperature, fertility: The scrotum maintains a temperature slightly cooler than body temperature, which is necessary for sperm production and fertility.

C. Infection, sterility: While infection can cause sterility, the descent of the testes primarily addresses temperature regulation.

D. Cyanosis, ischemia: These are circulatory issues not directly related to testicular descent.

A. Prevents erection B. Induces sterility C. Interferes with testosterone secretion D. Prevents orgasm

Correct Answer is B

Explanation

A. Prevents erection: Erection is regulated by blood flow and nerves, not the vas deferens.

B. Induces sterility: Vasectomy (cutting the vas deferens) prevents sperm from being ejaculated, resulting in sterility.

C. Interferes with testosterone secretion: Testosterone is produced by the testes, unaffected by vasectomy.

D. Prevents orgasm: Vasectomy does not affect the ability to have orgasms.

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Which of the following hormones, increase skin color when exposed to sunlight?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

Which of the following best describes why it is necessary that the testes descend into the scrotum?

Correct Answer is B

Explanation

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Correct Answer is B

Explanation

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