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Choose the correct statement

Option: 1

Cardiac muscles are voluntary in nature


Option: 2

Cardiac muscles are the muscles of the alimentary canal


Option: 3

Cardiac muscles are non-striated. 


Option: 4

Cardiac muscle is formed by cardiac muscle cells assembled in branching pattern


Answers (1)

 

 

Muscles and Their Types -

  • Muscle is a specialised tissue of mesodermal origin. 
  • About 40-50 percent of the bodyweight of a human adult is contributed by muscles.
  • They have special properties like excitability, contractility, extensibility and elasticity.
  • Muscles have been classified using different criteria, namely location, appearance and nature of regulation of their activities. 
  • Based on their location, three types of muscles are identified : 
    • (i) Skeletal 
    • (ii) Visceral and 
    • (iii) Cardiac

 

Cardiac Muscles:

  • Cardiac muscles are the muscles of the heart.
  • Many cardiac muscle cells assemble in a branching pattern to form a cardiac muscle. Based on appearance, cardiac muscles are striated. 
  • They are involuntary in nature as the nervous system does not control their activities directly.
     

Hence the correct option is d. Cardiac muscle is formed by cardiac muscle cells assembled in branching pattern

 

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Kshitij

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