Examlex
Compare the starts of intramembranous ossification and endochondral ossification.
Cushion the Heart
Likely refers to the protective layer around the heart, such as the pericardial fat or the pericardium, but without specific context, the term is ambiguous.
Outermost Layer
The external surface or coating of an object or body.
Epicardium
The outermost layer of the heart's wall, playing a crucial role in providing a protective layer and contributing to the heart's lubricative outer covering.
SA Node
The sinoatrial node, a group of cells in the heart that regulates the heart's rhythm by generating electrical impulses.
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