| A | B |
| central nervous system | consists of brain & spinal cord |
| peripheral nervous system | made up of nerve cells that send messages b/t nervous system & all parts of body |
| neuron | nerve cells that run through the entire body & communicate w/ each other |
| cell body | produces energy that fuels the activity of the cell |
| dendrite | recieves info from other neurons & passes message through cell body |
| axon | carries messages away from neuron |
| somatic nervous system | transmits sensory messages to central nervous system |
| autonomic nervous system | regulates body's vital functions (heartbeat, breathing, digestion & blood pressure) |
| cerebellum | involved in coordination & balance |
| thalamus | portion of brain that recieves info about senses, regulates sleep & attention, & works like a computer |
| hypothalamus | involved in many aspects of behavioral functions |
| cerebrum | largest structure of brain |
| cerebral cortex | outer layer of cerebrum |
| corpus callosum | structure that connects the 2 hemispheres |
| endocrine system | consists of glands that secrete hormones |