Multiple choice

Cardiac muscle fibres are different from skeletal muscles because these are :

  1. striated, involuntary

  2. non-striated,voluntary

  3. non-striated involuntary

  4. antagonistic
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A Correct answer
Explanation

Cardiac muscles from the walls of heart. These are intermediate in structure being striated and involuntary. It is meant for automatic and rhythmic contraction. On the other hand skeletal muscles are striated and voluntary, they are most abundant and found attached to skeleton. They are supplied by somatic nerve and hence are under voluntary control.The smooth muscles are non-striated and involuntary. They often encircle or surround viscera. They are supplied by autonomic nervous system. 

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