Spinal Cord And Nerves

31 cards

Anatomy 


 
  
Created Oct 14, 2010
by
m3l2121

 

 
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1
divisions of the nervous system
 
central nervous system (CNS)peripheral nervous system (PNS)
2
central nervous system
 
brain and spinal cord
3
peripheral nervous system
 
all nerves other than brain and spinal cord
4
nucleus
 
find deffiniiton
5
ganglion
 
find deffintition
6
three types of cells
 
sensory neuronmotor neuroninter neuron
7
sensory neuron is found...
 
in dorsal roots
8
motor neurons are found...
 
in ventral roots
9
inter neurons are found...
 
in posterior horns
10
motor neurons go...
 
out of PNS to the glands
11
afferent
 
going in
12
efferent
 
going out
13
somatic sensory 
 
coming from body
14
visceral sensory
 
senses from organs
15
somatic motor
 
movement of body 
16
visceral motor
 
movement of organs
17
spinal cord is protected by
 
bonemeningescerebrospinal fluidfat
18
spinal cord is made up of 
 
white and gray matter
19
spinal nerves
 
31 pairs
branch off from intervertebral foramen
20
main functions of spinal cord
 
main section for reflexes
involved in sensory and motor
21
meninges
 
(membrane) CT that wraps around spinal cord and brain
22
three layers of meninges
 
duraarachnoidpia
23
dura
 
most superficial layer-wraps around beginnings of spinal nerves-merges with epineurium of spinal...
24
epidural
 
outside space of duranot in brain
25
subdural
 
between dura and arachnoid
26
arachnoids
 
looks like a spider web
middle layer
27
subarachnoid
 
between arachnoid and pialarger blood vesselsruns to level S2contains cerebrospinal fluid
28
pia
 
deepest layerhighly vascular
29
Gray matter
 
-H shaped-doesnt reach the end of the anterior part-has a canal in the center-gray...
30
posterior horns
 
cell bodies of sensorycell bodies of interneurondorsal roots
31
anterior horns
 
-cell bodies of motor-sends info out of spinal cord to muscles and glands-ventral roots

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