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

A.

Thyroid stimulating hormone (TSH)

B.

Melatonin

C.

Follicle stimulating hormone (FSH)

D.

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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Related Questions

Correct Answer is A

Explanation

A. ADH: Antidiuretic hormone promotes water reabsorption in the kidneys, reducing urine output.

B. Oxytocin: Stimulates uterine contractions and milk ejection; not related to urine regulation.

C. ACTH: Secreted by anterior pituitary; stimulates adrenal cortex, not kidneys.

D. FSH: Stimulates follicles in the ovaries; no effect on kidney function.


Correct Answer is C

Explanation

A. "This test measures the amount of thyroid hormone that attaches to a protein in your blood.": That describes a thyroid hormone binding test, not TSH.

B. "This test detects antithyroid antibodies in your blood.": That describes a test for autoimmune thyroid conditions like Hashimoto's.

C. "The test determines whether your thyroid gland is overactive, appropriately active, or underactive.": TSH levels indicate how well the thyroid is functioning.

D. "This test measures the absorption of iodine and how it relates to the thyroid gland.": That describes a radioactive iodine uptake test.

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