Heart Rate Is Increased by the Release of Epinephrine by the Adrenal

question 14

Multiple Choice

Heart rate is increased by the release of epinephrine by the adrenal medulla into the bloodstream.This is an example of

• A)endocrine control.
• B)exocrine control.
• C)paracrine control.
• D)direct neural control.
• E)positive feedback.

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