| A | B |
|---|
| nervous system | controls all your actions and thoughts |
| impulse | message carried by neurons to one part of the body from another |
| neurons | basic unit of the nervous system |
| nerve | bundle of axons from many neurons |
| synapse | the gap between one neurons dendrites and another neurons dendrites |
| neurotransmitters | assist in the transport of impulses |
| sensory neurons | detect changes in environment |
| interneurons | receive sensory messages and responses |
| motor neurons | carries a response from the interneurons to the muscles, glands, and internal organs of the body |
| central nervous system | brain and spinal cord make this up |
| cerebrum | largest and uppermost part of the brain |
| cerbral cortex | outer layer of the cerebrum |
| hypothalamus | regulates some of your body's most basic needs |
| cerebellum | part of brain coordinates the muscles that you use for action |
| brainstem | structure that connects cerebrum with the spinal cord |
| peripheral nervous system | system that carries messages between the cns and the rest of the body |
| autonomic nervous system | controls involuntary responses, i.e. breathing and digestion |
| parasympathetic nervous system | subsystem of the autonomic--generally slows down the body's functions |
| sympathetic nervous system | subsystem of the autonomic nervous system that works when you are active or under emotional stress |
| somatic nervous system | division of peripheral nervous system that carries sensory information--controls voluntary action of the muscles |
| voluntary body movements | spinal cord, brainstem, cerebellum and cerebrum play a role |
| control balance | brainstem and cerebellum |
| perfects all of your movements | cerebellum |
| engram | special code that recoreds the patttern of a skilled movement |
| reflex | rapid, automatic response to the environment that occurs without action from the brain |
