pig's heart

right atrium

deoxygenated blood from body

tricupsid valve

one way blood flow between right atrium and right ventricle

right ventricle

deoxygenated blood to lungs

septum

prevent oxygenated blood and deoxygenated blood from mixing

semilunar valve aortic

one way blood from heart to aorta

left atrium

oxygenated blood from lungs

mitral valve

one way blood flow between left atrium and left ventricle

left ventricle

oxygenated blood to the body VIA AORTA