The heart is a muscle that pumps blood throughout the body. In humans, it is made up of four chambers and enclosed in a sac called the pericardium.
type of muscle that makes up the heart
What makes up the walls of the heart are 3 different layers that consist of tissue and muscle. These muscles contract.
footworking music makes your heart rate go up :)
kidney
Myocardium.
Blood in, blood out.
Cardiac muscles
cardiac muscle
Mydocardium is the tissue that makes up the lining of the heart.
Heart valves are made up of Connective tissue
It makes your heart pressure go up
The left ventricle is the largest part of the heart. This ventricle is charged with pumping blood out of the heart.