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Right Ventricle 3D

  • Description:
    • * It is a triangular chamber which receives blood from the right atrium and pumps it to the lungs through the pulmonary trunk and pulmonary arteries.
    • * Forms the inferior border and two-thirds part of the sternocostal surface and one-third part of inferior the surface of the heart.                                                                                                                                                                                                                                                                  
  • Trabeculae Carneae Cordis:
    • * Are anastomosing muscular ridges of myocardium in the ventricles.                                                                                                                                                                                                                                                                                                                                                                          
  • Papillary Muscles:
    • * Are cone-shaped muscles enveloped by endocardium.
    • * Extend from the anterior and posterior ventricular walls and the septum. Their apices are attached to the chordae tendineae.
    • * Contract to tighten the chordae tendineae, preventing the cusps of the tricuspid valve from being everted into the atrium by the pressure developed by the pumping of the heart. It prevents the regurgitation of ventricular blood into the right atrium.                                                                                    

 

  • Chordae Tendineae​​​​​​​:
    • * Extend from one papillary muscle to more than one cusp of the tricuspid valve.
    • * Prevent eversion of the valve cusps into the atrium during ventricular contractions.

                                                                                                                                                                                                                                                                                     

  • Conus Arteriosus​​​​​​​​​​​​​​:
    • * Is the upper smooth-walled portion of the right ventricle, which leads to the pulmonary trunk.                                                                                             

 

  • Septomarginal Trabecula​​​​​​​:
    • * Is an isolated band of trabeculae carneae that forms a bridge between the intraventricular septum and the base of the anterior papillary muscle of the anterior wall of the right ventricle.
    • * It can prevent overdistention of the ventricle
    • * Carries the right limb (Purkinje fibers) of the atrioventricular bundle from the septum to the sternocostal wall of the ventricle.

 

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  • Description:
    • * It is a triangular chamber which receives blood from the right atrium and pumps it to the lungs through the pulmonary trunk and pulmonary arteries.
    • * Forms the inferior border and two-thirds part of the sternocostal surface and one-third part of inferior the surface of the heart.                                                                                                                                                                                                                                                                  
  • Trabeculae Carneae Cordis:
    • * Are anastomosing muscular ridges of myocardium in the ventricles.                                                                                                                                                                                                                                                                                                                                                                          
  • Papillary Muscles:
    • * Are cone-shaped muscles enveloped by endocardium.
    • * Extend from the anterior and posterior ventricular walls and the septum. Their apices are attached to the chordae tendineae.
    • * Contract to tighten the chordae tendineae, preventing the cusps of the tricuspid valve from being everted into the atrium by the pressure developed by the pumping of the heart. It prevents the regurgitation of ventricular blood into the right atrium.                                                                                    

 

  • Chordae Tendineae​​​​​​​:
    • * Extend from one papillary muscle to more than one cusp of the tricuspid valve.
    • * Prevent eversion of the valve cusps into the atrium during ventricular contractions.

                                                                                                                                                                                                                                                                                     

  • Conus Arteriosus​​​​​​​​​​​​​​:
    • * Is the upper smooth-walled portion of the right ventricle, which leads to the pulmonary trunk.                                                                                             

 

  • Septomarginal Trabecula​​​​​​​:
    • * Is an isolated band of trabeculae carneae that forms a bridge between the intraventricular septum and the base of the anterior papillary muscle of the anterior wall of the right ventricle.
    • * It can prevent overdistention of the ventricle
    • * Carries the right limb (Purkinje fibers) of the atrioventricular bundle from the septum to the sternocostal wall of the ventricle.

 

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