Sheep Heart

red arrow

base

green

apex

purple

right ventricle

blue

left ventricle

orange

left atrium

pink

pulmonary trunk

brown

auricle

green

anterior interventricular sulcus

red

anterior interventricular artery

blue

great cardiac veins

red

aorta

green

right atrium

blue (dark) (big hole)

Pulmonary vein

orange

atrioventricular sulcus

light blue

left ventricle

pink

right ventricle

dark blue

pulmonary Trunk

green

right atrium

purple

left ventricle

light blue

right ventricle

red (held open to view aortic semi-lunar valve [cannot see] which is deep in itself)

aorta

dark blue (hidden under flap of the aorta)

pulmonary trunk

green (dissected and held open)

right atrium

purple (bumpy ridges on wall inside atrium) 

pectinate muscle

blue

left atrium

purple

pectinate muscles

dark blue

left ventricle

green (the wall separating ventricles)

interventricular septum

red (cut into and held open)

right ventricle

pink

tricuspid valve

orange

chordae tendineae

brown

papillary muscle

red

left ventricle

green

bicuspid valve

pink

chordae tenineae

dark blue

papillary muscle

purple

trabeculae carneae

red

left ventricle

pink

left ventricle wall

dark green

right ventricle

light green

right ventricle wall