Which of the following factors increases heart rate?
A) Sudden, intense pain of visceral organs such as the intestines and the gallbladder
B) Stimulation of skin receptors by cold
C) Anxiety and fear
D) Grief

Question

Quizplus · Accepted Answer

Anxiety and fear can activate the sympathetic nervous system, causing the release of epinephrine and norepinephrine, which increase heart rate. Sudden, intense pain of visceral organs can also activate the sympathetic nervous system and increase heart rate, but this is not a choice. Stimulation of skin receptors by cold can cause peripheral vasoconstriction, which can actually decrease heart rate. Grief may activate the parasympathetic nervous system, which can actually decrease heart rate.

Which of the Following Factors Increases Heart Rate