Function: the pump delivers blood under pressure into vessels
Function: complete lining for the atria, ventricles and all the structures projecting into them, such as valves, chordae tendineae, papillary muscles.
Composition: endothelium with basement membrane and subendothelial connective tissue.
Composition: connective tissue with abundant elastic fibers and smooth muscle cells.
Composition: connective tissue with impulse-conducting system.
Function: allow blood to flow in only one direction.
Composition: folds of endocardium, in the middle of each leaflet is a flat sheet of dense connective tissue.
Function: contraction to propel the blood.
Composition: striated cardiac muscle, nerves, vessels.
Location: in the ventricles is substantially thicker than in the atria.
Function: the outer coats.
Composition: mesothelium with basement membrane, underlying connective tissue, nerves, vessels, fat (white adipose tissue).