The Heart

The Heart - -2 ventricles (lower chambers) These four...

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The Heart Endocardium – inner lining of heart chambers and covers heart valves Myocardium – heart muscle tissue Epicardium – thin outermost layer of the heart often times this layer is combined with the pericardium as one layer Pericardium – a sling like structure that attached the heart to the surrounding structures It is a two layered sac with lubricated spaces between the two spaces Four Chambers: - 2 atria (upper chambers)
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Unformatted text preview: -2 ventricles (lower chambers) These four chambers act as two separate pumps right and left, performing different functions Right Atrium Receives unoxygenated blood from the superior and inferior vena cava The superior vena cava collects blood from the head and the upper body region The inferior vena cava collects blood from the lower body The blood then passes through the tricuspid valve...
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