Its main funtion is to carry oxygen and food to body cells and to carry wastes away.
-muscle about the size of your fist
-sits in left sided of chest cavity
-made of cardiac and striated muscles
controls your heart beat.
Epicardium, Myocardium, and Endocardium
The three layers of the heart
a flud filled sac that surrounds the heart.
-It keeps the heart in the chest cavity
-acts as a lubricant when the heart beats
Upper chambers of the heart.
Lower chambers of the heart.
Flows away from the heart.
Flows to the heart from body.