| A | B |
|---|
| Clear covering at the front of the eye | Cornea |
| receives stimuli from the environment | receptor |
| controls heartbeat and breathing rate | medulla |
| carries message away from a nerve cell | axon |
| the lens of the eye focuses images on the es on | retina |
| The path of a message in reflex is called | reflex arc |
| The nervous system is made up of the brain, spinal cord and | nerves |
| The central nervous system is made up of the brain and | spinal cord |
| Axon, cell body and dendrites make up a | neuron |
| part of the brain that controls balance and body motion | cerebellum |
