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  • The type of muscles present in our:  Option: 1 Heart are involuntary and unstriated smooth muscles  <div

The type of muscles present in our:

 

Option: 1

Heart are involuntary and unstriated smooth muscles

 


Option: 2

Intestine are striated and involuntary

 


Option: 3

Thigh are striated and voluntary

 


Option: 4

Upper arm are smooth muscle fibres fusiform in shape


Answers (1)

 

Location-

  • Skeletal muscles are found in limbs, body walls, pharynx, initial regions of the oesophagus.
  • These are voluntary muscles i.e. they are under the control of an individual’s will. 

Structure- 

  • These muscles fibres are found in the form of bundles.
  • These are attached to the skeleton.
  • A muscle fibre is an elongated cell. It is surrounded by sarcolemma ( plasma membrane of muscle fibre).
  • These muscle fibres are multinucleated. Nuclei are irregularly scattered in the cytoplasm of muscle fibre which is called sarcoplasm. 
  • In the sarcoplasm, tightly bound myofibrils are present.

 

The skeletal muscles are voluntary muscles i.e. they are under the control of an individual’s will.  These are attached to the skeleton.

Posted by

Kshitij

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