• Ventriculus sinister - Left ventricle

* ventricles

• left ventricle
  • 3 surfaces
    • anterior / sternocostal surface
    • inferior / diaphragmmatic
    • left surface
  • lower rough part
  • upper smooth part
  • valves
    • bicuspid / mitral valve
    • aortic orifice guardiung aorta
• right ventricle
  • two surfaces
    • inferior / diaphragmmatic
    • anterior / sternocostal
  • position
  • external features
    • interior
      • infloiwing part
        • rough due to
          • muscular ridges
            • trabeculae carnea
              • develops from proximal part of bulbous cordis
        • types
          • ridges or fixed elevations
          • bridges
          • pillars or papillary muscles
      • outflowing part
        • or infundibulum
          • smooth
            • forms upper conical part of right ventricle
              • gives pulmonary trunk
            • develops from midportion of bulbous cordis
  • interventricular septum