Question

Which of the following characteristics is not associated with cardiac muscle?

A) intercalated discs
B) electrical coupling by gap junctions
C) involuntary nervous control
D) fusion of cardiomyocytes into large multinucleated myofibers
E) striations

Answer 1

Cardiac muscle is not associated with involuntary nervous control.

Step-by-step explanation:

The characteristic that is not associated with cardiac muscle is involuntary nervous control. Cardiac muscle is under involuntary control, meaning it is not directly influenced by the nervous system. The contractions of cardiac muscle are controlled by specialized cells within the heart called pacemaker cells, which generate electrical signals that stimulate contraction.