the heart valves

biscupid valve

- aka the mitral valve - left side valve

what are the atrioventricular valves & where are they located?

- bicuspid & tricuspid AV valves - located between atria and ventricles

what are the four valves of the heart?

- bicuspid atrioventricular valve - tricuspid atrioventricular valve - pulmonary semilunar valve - aortic semilunar valve

what are the semilunar valves & where are they located?

- pulmonary & aortic semilunar - between ventricle and arteries

pulmonary valve

- pumps blood to lungs - located in right ventricle to take deoxygenated blood to the lungs

aortic valve

- pumps blood to the body - located in left ventricle

valves open as...

blood is pumped through

what are the valves held in place by?

chordae tendinae

tricuspid valve

right side valve

what is the function of the valves?

to allow blood to flow in only one direction

why do valves close?

to prevent backflow