Examlex
Which of the following organisms move about by means of pseudopodia?
Chambers
Spaces within an organ or a device; in the context of the heart, refers to the four cavities (two atria and two ventricles) responsible for pumping blood.
Pericardium
The double-layered sac containing the heart and the roots of the great vessels, providing protection and support to the heart.
Epicardium
The outermost layer of the heart's wall, part of the heart's protective covering and involved in the production of pericardial fluid.
Myocardium
The myocardium is the muscular tissue of the heart, responsible for contracting and pumping blood throughout the body.
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