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Increased Activity of [Dropdown 1] Decreases Heart Rate

Question 43

Short Answer

Increased activity of [dropdown 1] decreases heart rate.Dilation of air passageways during exercise is a result of the [dropdown 2].Vasoconstriction of salivary gland arterioles is caused by the [dropdown 3].
Dropdown choices:
parasympathetic system
sympathetic system
both parasympathetic and sympathetic system

Correct Answer:

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1.parasympathetic sy...

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