Nervous System Key Terms Flashcards
PNS
Peripheral Nervous System, input/output
CNS
Central Nervous System, Integrator, doing something with the information from the input
Neuron (Cell Body)
Sends the signals that are leaving the brain or bringing info into the brain.
Nerve Fibers
Axons and Dendrites, the extensions off the cell body. Only bring info to/from the cell body
Afferent + Sensory Neurons
Brings info into CNS
Efferent + Motor Neurons
Brings info out of CNS
Dorsal Root
Brings information/input into spinal cord
Ventral Root
brings info out of Spinal cord, output
Receptors
recieves info
Effectors
response of the body to information/stimuli
Visceral
Involuntary control, organ function
SOmatic
Voluntary control
Gray Matter
Cell bodies in the brain/spinal cord
White bodies
Myelin (fat, for insulation), nerve fibers in the brain
Input
Dendrite, afferent, snsory, dorsal root, receptors