Central Nervous System		Provide insulating layers of myelin
Nerves		receives electrochemical messages
nodes of ranvier		Carrys impulses from the central nervous system to responsives structures called what?
dura mater		Connects the CNS to the rest of the body
Resting Potential		have two process arising from the cell body
Schwann cells		the potential difference between the region inside the membrane
Myelin		This carries nerve impulses from peripheral body parts into the brain or spinal cord.
excitatory		These transmit information in the form of electrochemical changes
Effectors		masses of nerve cells
Peripheral Nervous System		increases the chance that nerve impulse will occur
Dendrites		The fatty lipoprotein
Action potential		Found in the PNS and surround
inhibitory		Motor functions that can be consciously controlled comprise what system
Oligodendrocytes		Found between neurons and blood vessels
Somatic Nervous System		bundles of axons
Sensory neurons		Consisting of the brain
Neurons		Narrow gaps between the schwann cells
Neurilemma		Produce myelin in the PNS
Synapse		lessens the chance that a nerve impulse will occur
Astrocytes		This system controls involuntary effectors
Bipolar neurons		rapid sequence of depolarization
Nerve Impulses		the junction between two communicating neurons
Autonomic Nervous System		outer most layer of the meninges