Myocardium

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Cardiac muscle
Glanzstreifen.jpg
Cardiac muscle
Dogcardiacmuscle400.jpg
Dog Cardiac Muscle 400X
Latin textus muscularis striatus cardiacus
Code TH H2.00.05.2.02001

Myocardium is the muscular tissue of the heart. Other tissues are the endocardium (inner lining, effectively a specialised endothelium) and the pericardium (a connective tissue layer around the heart). The myocardium is the middle layer of the walls of the heart, made of cardiac muscle, that contracts to push out blood.

The heart muscle can become sick and weak. Heart muscle can even die if blood flow stops.