Question

Cardiac muscle is _______ muscle that makes up the heart?

1) Skeletal
2) Smooth
3) Striated
4) Voluntary

Answer 1

Cardiac muscle is striated muscle that makes up the heart. It is involuntary and contracts in short, intense bursts.

Step-by-step explanation:

Cardiac muscle is striated muscle that makes up the heart. It is different from smooth muscle and skeletal muscle in several ways. Cardiac muscle is involuntary, meaning it cannot be consciously controlled. It contains intercalated discs and contracts and relaxes in short, intense bursts