If a Drug Is Administered to Block the Heart's Adrenergic

question 5

Multiple Choice

If a drug is administered to block the heart's adrenergic receptors,how is heart rate affected during exercise?

• A)The heart will stop beating.
• B)Heart rate will be unable to increase in response to exercise.
• C)Heart rate will increase in response to the drug.
• D)The drug has no effect on heart rate during exercise.

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