Question

Write the difference between non-voluntary muscles and in-voluntary muscles.

Answer 1

1. Voluntary muscles are associated with nerves under voluntary control, whereas involuntary muscles are associated with nerves of autonomic nervous system which is under involuntary control. 2.Unlike involuntary muscles, voluntary muscles can be controlled consciously. 3.Contractions of voluntary muscles may be rapid and forceful, whereas that of involuntary muscles are rhythmic and slow. 4.Smooth and cardiac muscles are considered as involuntary muscles, whereas skeletal muscles are considered as voluntary muscles. 5.Voluntary muscles contribute a high percentage of the total body weight, while involuntary muscles contribute the rest. 6.Unlike involuntary muscles, voluntary muscles are attached to bones. Involuntary muscles are visceral. 7.Voluntary muscle tissue is made up of cylindrical fibres, while involuntary muscles (smooth muscles) are made up of spindle- shaped fibres.