Testosterone Is Made in the Testes, Where It Stimulates Sperm

question 11

Multiple Choice

Testosterone is made in the testes, where it stimulates sperm development. Additionally, testosterone is carried in the blood throughout the body, stimulating the growth of facial hair and muscles. Therefore, testosterone is

• A) a neurotransmitter.
• B) a local hormone.
• C) both a local and an endocrine hormone.
• D) both a neurotransmitter and an endocrine hormone.
• E) an endocrine hormone.

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Definitions:

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