Cardiac muscle cells are both
A) striated and interconnected by intercalated disks.
B) striated and operate independently of other cardiac cells.
C) smooth and under voluntary control.
D) striated and under voluntary control.
E) smooth and under involuntary control.

Question

Quizplus · Accepted Answer

Cardiac muscle cells, also known as cardiomyocytes, are striated (have a striped appearance) and are connected to each other by intercalated disks, specialized junctions that allow for synchronous contraction of the heart. The intercalated disks contain gap junctions, which allow for electrical communication between adjacent cells, resulting in coordinated muscle contraction.

Cardiac Muscle Cells Are Both