| A | B |
|---|
| epiglottis | valve that directs food an air to the proper place |
| esophagus | food pipe |
| peristalsis | muscle movement that pushes food through the digestive tract |
| neurotransmitter | fluid in the synapse |
| diaphragm | muscle that enables people to breathe |
| medulla oblongata | responsible for life's basic functions (breathing and heartbeat) |
| trachea | windpipe |
| capillaries | smallest blood vessels |
| neuron | nerve cell |
| marrow | in the bones produces red blood cells |
| synapse | gap between nerve cells |
| cerebellum | controls muscle coordination |
| aorta | largest artery |
| pulmonary vessels | tkae blood between heart and lungs |
| arteries | oxygen rich blood |
