The Heart Muscle is a ________ Effector

Question

The heart muscle is a ________ effector.
A) somatic
B) sympathetic
C) visceral
D) afferent
E) higher-order

Accepted Answer

The heart muscle is a part of the visceral smooth muscle, which is controlled by the autonomic nervous system, and not under voluntary control (somatic). The sympathetic branch of the autonomic nervous system increases the heart rate and force of contraction, while the parasympathetic branch slows down the heart rate. Therefore, the correct answer is C) visceral.