Assertion : Left atrium has the thickest muscles
Reason : Right atrium receive blood from the lungs

Right atrium receives blood from

Right atrium receives blood from

Right atrium of heart of mammal receives blood from

Right atrium of heart of mammal receives blood from

Left atrium receives oxygenated blood through

Left atrium receives oxygenated blood through:

he right atrium receives .............. blood.

Left atrium gets ____blood from ______

Assertion (A) : Left ventricle of heart has a thinner wall than that of the right ventricle . Reason (R ) : Right ventricle pump blood to nearby lungs .