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  • The walls of the ventricles are internally raised into a number of thick, muscular, column-shaped projections called   Op

The walls of the ventricles are internally raised into a number of thick, muscular, column-shaped projections called 

 

Option: 1

Columnae carneae

 


Option: 2

Musculi papillaires

 


Option: 3

Chordae fissures

 


Option: 4

Foramen ovale

 


Answers (1)

best_answer
 

Ventricles

  • Ventricles are broad, more muscular, light coloured part of the heart
  • The interventricular septum separates the left and right ventricle
  • The two auricles and two ventricles are separated by the auriculoventricular septum
  • The walls of the ventricles are internally raised into a number of thick, muscular, column-shaped projections called columnae carneae or trabeculae carneae 
  • The columnae carneae divide the cavity of the ventricles into smaller spaces called fissures
  • A few large muscular elevations called papillary muscles or musculi papillaires, which are two in left ventricles and three in the right ventricle are also seen
  • Fine tendinous cords called chordae tendineae are found attached to the ventricular surface of the valves on one side and to the papillary muscles on the other
  • Right ventricle pumps deoxygenated blood to the lungs and the left ventricle pumps oxygenated blood throughout the body
  • These structures prevent inversion of valves. 

The walls of the ventricles are internally raised into a number of thick, muscular, column-shaped projections called columnae carneae or trabeculae carneae. Hence, the correct answer is option a.

Posted by

Pankaj Sanodiya

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