The pericardium and the pericardial fluid help in
Protecting the heart from friction, shocks and keeps it moist
Pumping the blood
Receiving the blood from various parts of the body
None of the above
Trilobed valve present between right atrium and ventricle in mammalian heart is
In connection with circulatory system, valves are present
Definition / Explanation :
$(1)$ $AV$ valve (Tricuspid)
$(2)$ Mitral (Bicuspid) valves
What is called Mitral valve?
‘Bundle of His’ is a part of which one of the following organs in humans?