Reviewer for CARDIOVASCULAR SYSTEM

Heart wall contains three layers

consists of thick bundles of cardiac muscle

its is a valve between left atrium and left ventricle

in atrial septum, transmits signal to bundle of His

cluster of cells in wall of right atria

Reinforced by dense fibrous connective tissue

a thin glistening sheet of endothelium that lines the heart chambers

Shape like a blunt cone or Size of an Closed fist

What are 2 Chambers of the heart

Space around the heart filled with a thin layer or Pericardial Fluid