Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

Sensory neurons

carry impulses to the center; detect changes inside and outside the body; begin in any organ and end in CNS


lie in CNS; process, store, and recieve informationl receive impulses from sensory receptors and madke decisions in repsonse

Motor neurons

carry messages away from CNS; employ peripheral neurons to carry message form brain to the effector

Sensory, inter, motor

Functional classification of neurons

Central, Peripheral, Somatic, Autonomic

Divisions of the Nervous system

Central Nervous System

spinal cord, brain

Peripheral Nervous System

cranial nerves arise from the brain; spinal nerves arise from the spinal cord

Somatic Nervous System

connects to skin and skeletal muscles' conscious activities (voluntary)

Autonomic Nervous System

connects CNS to viscera; acts on all effectors other than skeleton; unconscious activities sympathetic (emergency), parasymphatic

Central Canal, Dorsal Root, Dorsal Root Ganglion, Gray matter, White Matter, Ventral Root

Parts of the Spinal cord

Central Canal

contains cerebrospinal fluid

Dorsal Root and Dorsal Root Ganglion

contains cell bodies of sensory neurons; sensory dendrites carry information to cell body and axon takes it into the spinal cord

Gray Matter

majority of this area is interneurons and some motor neurons (lacks myelin)

White Matter

highway; glistering white appearance due to myelin; bundles of myelinated axons form nerve tracts up and down the spinal cord; bundles arranged in 3 columns- anterior, posterior, lateral funiculi

Ventral Root

contains axons of motor neurons whose cell bodies are in the gray matter

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording