| A | B |
|---|
| nerve fibers | cables that relay electrical signals to the brain |
| synapses | the gaps that occur between individual cells |
| receptors | cells that gather information |
| effectors | celss that work muscles, glands, and organs |
| neurons | strings of long thin cells |
| neurotransmitters | similar to valves in a water system |
| somatic nervous system | controls voluntary activities |
| autnomic nervous system | controls involuntary activities |
| sympathetic nervous system | prepares the body for strenuous activity |
| parasympathetic nervous system | conserves energy |
| spinal chord | connects brain to the rest of the body |
| central nervous system | consists of the brain and spinal chord |
| peripheral nervous system | smaller branches of nerves branching over the body |
| subcortex | lower section of the brain that was the first to evolve |
| cerebellum | inner layer of cerbral cortex |
| cerbral cortex | controls higher thinking processes |
| cerebrum | inner layer ofthe "new brain" |
| lobes | regions of the brain |
| somotosensory cortex | receives information |
| motor cortex | sneds information to control movement |
| reticular activating system | filters input |
| thalamus | filters input |
| frontal lobes | contrl creativity and personality |
| corpus callosum | carries messages between the two hemispheres of hte brain |
