The formation of the heart depends on critical signals exchanged between its two main layers: the myocardium (the muscle that powers the heartbeat) and the endocardium (the inner lining of the heart).

The formation of the heart depends on critical signals exchanged between its two main layers: the myocardium (the muscle that powers the heartbeat) and the endocardium (the inner lining of the heart).

The formation of the heart depends on critical signals exchanged between its two main layers: the myocardium (the muscle that powers the heartbeat) and the endocardium (the inner lining of the heart).

The formation of the heart depends on critical signals exchanged between its two main layers: the myocardium (the muscle that powers the heartbeat) and the endocardium (the inner lining of the heart).

For example, endocarditis, a serious infection of the inner lining of your heart (endocardium) can be caused by staph bacteria. Signs and symptoms of staph infections vary widely, depending on the ...

Scale bar, 50 µm. via Wikimedia Commons The formation of the heart depends on critical signals exchanged between its two main layers: the myocardium (the muscle that powers the heartbeat) and the ...

WHEN Greg Hutton went to his dentist to have a tooth removed, he never imagined that it could nearly end his life - not once, but twice. For after a routine visit, the grandfather became so ill ...