The circulatory system includes the heart and all the vessels that transport blood around the body. Wikipedia has a great post with diagrams and explanations. A link is provided.
Cardiovascular system.
Muscles
Your heart, it pumps blood through your body.
It pumps oxygen and blood through your system.
The pumping heart pushes blood through the blood vessels.
WILLIAM harvey
it pumps the blood through your veins and arteries
the heart pumps it through the entire body system
The heart is a muscle, but it is NOT in the muscular system, and pumps blood to all parts of the body :)
The heart pumps blood through the body.
The heart pumps blood through the body.
the skeletal is one of the bodies
endocardium
the heart pumps the blood round our bodies