portal circulation refers to blood passing from one organ to another organ that is not the heart, a system which blood passes through two capillary beds in a series
dub
heart sound made when the semilunar valves snap shut
vena cava
the largest vein in the body; contains two parts: the superior vena cava carries blood from the upper body and the inferior vena cava brings blood from the lower body to the right atrium
heart valves associated with the heart
atrioventricular (AV) valves, semilunar valves
fenestrated
the endothelial cell layer has numerous holes, resulting in porous capillaries that allow for rapid absorption and filtration, located in kidney and intestines
elastic (large) arteries
high proportion of elastin
atrioventricular (AV) valves
permit blood flow from atria into the ventricles but not the reverse, right AV is tricuspid, meaning that it has three leaflets or cusps, and it is often called the tricuspid valve, left AV is bicuspid and is also called the mitral valve
coronary arteries
multiple arteries running on both sides of the heart that supply nutrients and O2 to the heart muscle
