Cow/Sheep heart

Left ventricle

Big bottom mass that includes the point and has a large cavity

Right ventricle

Smaller side mass with smaller cavity

Auricles

Ear-like flaps at top

Atria

Cavities above respective ventricles

Interventricular sulcus

Exterior separation of ventricles (sometimes full of fat) (along interventricular septum)

Apex

Bottom point

Myocardium

Musculature towards bottom

Interventricular septum

Interior thick tissue separating ventricles

Coronary sulcus

Exterior separation of ventricles

Coronary vessels

Hole in aorta above aortic valve

Cranial and caudal vena cava

Tubes on sides and bottom of heart with the sinus venosus in the middle (always on right side)

Systemic aorta

Big holes on top

Pulmonary trunk

Big tunnel next to aorta that comes out of right ventricle

Pulmonary artery

Vessel that comes out of right atrium

Pulmonary vein

Vessel that goes into left artium

Aortic valve

Big valve in middle that comes into cavity in left ventricle (exit door)

Pulmonary valve

In right ventricle that connects to pulmonary trunk

Tricuspid valve

Separating right atrium and ventricle

Bicuspid valve

Separating left atrium and ventricle

Chordae tendineae

Heart strings (connected to either tricuspid of bicuspid)

Fat

All of the white bumpy stuff