题目
题目
多项选择题

Question at position 1 The parasympathetic nervous system's effect on the heart would be __________. Select all that apply.Cardiac output would increaseStroke volume would increaseStroke volume would decreaseCardiac output would decreaseHeart rate would increaseHeart rate would decrease

选项
A.Cardiac output would increase
B.Stroke volume would increase
C.Stroke volume would decrease
D.Cardiac output would decrease
E.Heart rate would increase
F.Heart rate would decrease
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思路分析
Question restatement: The parasympathetic nervous system's effect on the heart would be __________. Select all that apply. Options provided: - Cardiac output would increase - Stroke volume would increase - Stroke volume would decrease - Cardiac output would decrease - Heart rate would increase - Heart rate would decrease Analysis of each option: Option: Cardiac output would increase - Rationale: Cardiac output (CO) is the product of heart rate (HR) and stroke volume (SV). Parasympathetic activity via the vagus nerve typically slows the heart rate. It does not normally increase contractility or stroke volume in a resting state. Therefore, CO would not be expected to increase under parasympathetic dominance; this option ......Login to view full explanation

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