Question

At rest, both cardiac and skeletal muscle arterioles have a high peripheral resistance due to

A. cholinergic sympathetic stimulation
B. Beta-adrenergic sympathetic stimulation
C. Alpha-adrenergic sympathetic stimulation
D. cholinergic parasympathetic stimulation

Answer 1

At rest, both cardiac and skeletal muscle arterioles have a high peripheral resistance due to Beta-adrenergic sympathetic stimulation.

Step-by-step explanation:

At rest, both cardiac and skeletal muscle arterioles have a high peripheral resistance due to B. Beta-adrenergic sympathetic stimulation.

Recall that mild stimulation of the skeletal muscles maintains muscle tone. A similar phenomenon occurs with vascular tone in vessels. Arterioles are normally partially constricted, and their dilation requires suppressing sympathetic stimulation.

Therefore, B. Beta-adrenergic sympathetic stimulation is responsible for the high peripheral resistance in both cardiac and skeletal muscle arterioles.