| A | B |
| teeth | chop and grind food |
| saliva | changes starch to sugar, adds liquid to the food |
| tongue | mixes the food with the saliva assists teeth |
| enzyme | protien that breaks down food |
| insulin | helps cells use sugar |
| bile | yellow-green fluid that breaks down fat |
| aorta | recieving chambers of the heart |
| ventricles | pumping chambers of the heart |
| capillaries | give oxygen to blood and pick up carbon dioxide |
| septum | divides the heart |
| lymphatic system | works with circulatory system to fight invections |
| spleen | fist sized organ that stores lymphocytes |
| T cells | cells that attack and destroy pathogens |
| pathogens | bacteria and virus infecting the body |
| bone marrow | makes blood cells |