The heart is cut by a vertical line towards the level of the ventricular septum and separates into 2 parts, after the arch of aorta and superior venacava have been removed.
Separates into 4 parts.
Extra large size showing finer details.
Both auricles and ventricles with the bicuspid and tricuspid semilunar valves as well as the sigmoid valves can be seen. 

Biology School Lab Equipment Suppliers in India 

Ltekonline are the manufacturers of Heart Extra Large on Base Model Human Biology Equipment Lab used to demonstrate engineering principles in Engineering Colleges, Engineering Schools and Biology Laboratory Equipment for Engineering Teaching Lab in Universities