| A | B |
|---|
| arteries | carry blood AWAY from the heart |
| veins | carry blood back to the heart |
| capillaries | connect arteries & veins |
| red blood cells | carry oxygen to all cells |
| white blood cells | kill bacteria and germs |
| platelets | aid in blood clotting |
| plasma | the liquid part of blood |
| trachea | windpipe |
| epiglottis | closes to cover trachea |
| alveoli | air sacs in lungs |
| oxygen | combined with food to make energy |
| carbon dioxide | a waste product of respiration |
| atrium | top chamber of the heart |
| ventricle | bottom chamber of the heart |
| septum | muscle that separates sides of the heart |
| diaphragm | muscle attached to lungs that aids breathing |
| aorta | the largest artery in body |
| larynx | voice box |
| pharynx | throat |
| nose/nasal cavity | filters, warms, moistens air |
