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NervousSystemFOX

Terms

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grey matter
cell bodies, processing units
dura mater
outermost layer of connective tissue surrounding spinal cord
arachnoid mater
middle layer, cobweb like protein fibers
subarachnoid space
hold cerebrospinal fluid
cerebrospinal fluid
cushions spinal cord, nutrient transportation
pia mater
inner layer of membrane, attaches to outer surface of spinal cord
spinal cord segments
31 segments
neurons
responsive cells in nervous system, carrying impulses
cell body
largest part, holds general parts.
myelin
electrically-insulating formation around axons
myelinated fibers
insulating envelope of myelin, surrounds core of nerve fibers. faster reaction time
unmyelinated fibers
nerve that lacks fatty sheath. slower reaction time
ganglia
any structure containing nerve cell bodies
cranial nerves
set of 12 nerves found on each side of the head and neck that control sesnory functions
multipolar neurons
a neuron with one axon, three or more dendrites
spinal nerves
cord-like structure comprising a collection of nerve fibers
sensing stimuli function
gathering information taking it into central nervous system
intergrative function
making judgements based upon experiences and stimuli
motor function
sending out impulses to muscles
excitatory neurotransmitters
promote action potential
inhibitory neurotransmitters
decreases membrane permability, prevents action potential

Deck Info

21

devinspencer

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