Question

what is cardiac muscle​

Answer 1

Answer:

Explanation:

cardiac muscle is the involuntary muscle which functions by its own that mean it does not required any message from brain

Eg:  muscle in heart

Answer 2

• In vertebrates, cardiac muscle (also known as myocardium) is one of three primary muscle groups that can only be found in the heart.
• Cardiac muscle has contractile units known as sarcomeres, which make it comparable to skeletal muscle, another primary muscle type.
• however, this feature also separates it from smooth muscle, the third muscle type.
• Cardiac muscle is distinguished from skeletal muscle by the fact that it contracts in a rhythmic pattern and is not controlled by the user.
• The sinoatrial node of the heart, which functions as the heart's pacemaker, regulates the rhythmic contraction of cardiac muscle.