56 



3?ig. 42. Vertical Section of the Human Heart.* 



tnese tendons oemg attacnea oy tneir otner extremities to me nesny columns 

 and fleshy walls of the ventricle. 3. Cavity of the right auricle. 4. Fleshy 

 columns strengthening the walls of the cavity. 5. Orifice of the great 



