Right Ventricle

    

The right ventricle is the triangular compartment of the heart that interacts with the right atrium via right atrioventricular orifice as well as via pulmonary orifice with the pulmonary trunk.

·     In the anatomical position, the right atrium is towards the right of the right ventricle and the right ventricle is located in front of and towards the left of the right atrioventricular orifice.

·       So, the blood going inside the right ventricle from the right atrium travels in a horizontal and forward direction.

·       The right ventricle creates most of the anterior surface of the heart as well as a part of the diaphragmatic surface.

      

     EXTERNAL FEATURES

·           It creates the most of sternocostal surface along with the small part of the diaphragmatic surface of the heart.

        The inferior border is also created by it.

·        A relatively vertical anterior portion of the coronary sulcus or atrioventricular groove separates it from the right atrium.

      

INTERNAL FEATURES

·         The interior of right ventricle consists of two parts:

·   The two parts are separated from each other by a muscular ridge, the supraventricular crest a.k.a. infundibulo ventricular crest.

·  The forward prominence of the interventricular septum flattens the cavity of right ventricle. It has crescent form in transverse section.

·       The wall of the right ventricle is thinner compared to the left ventricle

·       A large, lower rough inflowing part.

·       A small upper outflowing part, the infundibulum.

         

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