| A | B |
|---|
| Interneurons | Receive sensory messages and send responses. In brain and spinal cord |
| Motorneurons | Neurons that carry a response from the interneurons to the muscles, glands, and internal organs |
| Cerebrum | Uppermost part of the brain. Regulates your thoughts and actions |
| Thalamus | Relays sensory impulses to the cerebral cortex |
| Hypothalamus | Regulates basic needs; body temperature, sleep, digestion |
| Cerebellum | Cordinates the muscles u use for actions |
| Stimulants | Drugs that speed up nerve activity |
| Depressiants | Drugs that slow down nerve activity |
| Narcotics | Strong paintkillers that produce a relaxed dreamy state |
| Hallucinigens | Drugs that distort users preceptions |
| Nervous system | The complex group of organs and nerves that control all your actions and thoughts |
| Neuron | The basic units of the nervous system |
| Impulses | Messages of sensation and information |
| Nerve | Actually a bundle of axons from many neurons |
| Synapse | Between the end of the axon of one neuron and the dendrite of another neuron. A gap |
| Neurotransmitters | Natural chemicals located at the synapse |
| Sensory Neurons | Detect changes in the enviroment |
