Utente
1. its a pump.
2. it needs fuel
3. it runs off electricity
The heart is enclosed in the pericardial membranes, of which there are three layers. where the heart is housed.
1. Fiberous pericardium
2. parietal pericardium
3. visceral pericardium (epicardium)
The outermost layer. A loose fitting sack of strong, fiberous connective tissues that extends inferiorly over the diaphragm and superiorly over the base of the large vessels that enter and leave the heart.
lines the fibrous paricardium.
on the surface of the heart muscle
prevent friction as the heartbeats between the visceral and pareital pericardium.
1. epicardium
2. myocardium
3. endocardium
Thin, transparent outer layer that contains blood vessels, and vessels that supply the myocardium (fuel). This is also the visceral pericardium.
thick, muscular layer, responsible for strong, PUMPING action of the heart, made of specialized muscle tissue that is found only in the heart.
Lines the chambers and covers the valves, it is continuous with the endothelial linings of the blood vessels leaving and entering the heart.