| A | B |
|---|
| stimulus | anything in the environment that causes a response |
| response | action to a stimulus |
| reflex | an automatic body response to potentially harmful stimuli |
| neuron | a nerve cell |
| sensory neuron | type of neuron that carries message to central nervous system |
| motor neuron | type of neuron that carries message away from central nervous system to muscle organs |
| interneuron | type of neuron that connect sensory and motor neurons |
| nerve | a bundle of neurons |
| impulse | message carried by a nerve |
| Central Nervous System | consists of the cerebrum, cerebellum, medulla(brain stem), spinal cord, |
| Peripheral Nervous System | consists of spinal body nerves |
| Cerebrum | controls memory, learning, senses, personality, motor activities(movement)Largest part |
| Cerebellum | controls balance & Muscle coordination |
| Medulla/brain stem | controls breathing, heartbeat, reflexes(all involuntary action) |
| Spinal Cord | relays impulses between brain & body nerves |
| spinal nerves | relays impulses between CNS & body |
