Messages are transmitted from your spinal cord to your heart muscles by the
A) sensory nervous system.
B) somatic nervous system.
C) central nervous system.
D) autonomic nervous system.

Question

Quizplus · Accepted Answer

Messages from the spinal cord to the heart muscles are transmitted through the autonomic nervous system, which includes both the sympathetic and parasympathetic branches. These branches control involuntary functions such as heart rate and digestion.

Messages Are Transmitted from Your Spinal Cord to Your Heart