The valve that separates the LEFT atrium & the Left ventricle

the right atrium gets blood from?

This includes blood flow to all parts of the body except the lungs

This includes blood flow out of the heart

The side of the heart is responsible for the returning oxygen rich blood to the body

the side of the heart that gets blood from the body that is oxygen POOR

The conduction system of the heart

Name the location / place(s) of the conduction system

The Bundle of His is also known as the ?

This is known as the natural pacemaker of the heart.

In an EKG the P wave is due to the contraction of the ?