1. Muscle that pumps blood through body
Carries Oxygen rich blood from the left ventricle to the body
Carries Oxygen poor blood from the right ventricle to lungs
Trachea divides into 2 branches which enters the lungs
Where gas exchange occurs (oxygen in, carbon dioxide out)
Tiny hollow air sacs that make up the lungs.
Chambers of the heart that receive blood from the artia and pump blood out to either the body (left) or the lungs (right)

2. Artery that carries nutrients and oxygen to the heart muscle cells.
Chambers of the heart that receive blood from either the body (right) or the lungs (left) and pump blood to the ventricles.
“Flaps” on the atria to increase the volume of the chamber
Large vein that carries blood from the upper body to the right atrium
Large vein that carries blood from the lower body to the right atrium
Any blood vessel that carries blood Away
Any blood vessel that carries blood to the heart

5. Pulmonary Arteries
Superior vena cava
Right Atrium
Pulmonary Veins
Right Ventricle
From behind

6. Pulmonary Arteries
Superior Vena Cava
Right Atrium
Left Atrium
Rigth Ventricle
Left Ventricle
Coronary artery
From the Front