| A | B |
| Right Atrium | receives used blood from the body |
| Right Ventricle | pumps used blood to the lungs |
| Left Atrium | receives oxygen-rich blood from lungg |
| Left Ventricle | pumps oxygen-rich blood to the body |
| Arteries | carry blood away from the heart |
| Veins | carry blood to the heart |
| Capillaries | connect arteries to veins |
| Red Blood Cells | carry oxygen |
| White Blood cells | fight germs |
| Plasma | liquid part of blood that carries food |
| Platelets | stop bleeding by clotting blood |
| Blood vessels | carry blood througout the body |
| Heart | muscle that circulates blood |
| Nose & Mouth | beginning of the respiraatory system |
| Diaphram | muscle that stretches below your lungs to help breathings |
| Trachea | windpipe |
| Lungs | bag like organs that fill with air |
| Bronchial tubes | splits off two ways from the trachea and then goes to the lungs |
| Alveoli | places in the lungs where air is exchanged |
| Hemoglobin | Protein molecule that carries oxygen in the blood |
| Nose and nose hair | warms air and collects particles |