Spinal Cord And Nerves

17 cards

q&a from laborato


 
  
Created Mar 23, 2010
by
pateacakes

 

 
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1
what type of signal travels through the anterior gray horn? motor or sensory?
 
motor
2
what type of signal passes through the posterior gray horn? motor or sensory?
 
sensory
3
what type of signal passes through the ascending spiral tracts?
 
sensory
4
what type of signal passes through the descending spiral tracts?
 
motor
5
what major nerves arise from the cervical plexuses?
 
phrenic nerve
6
what major nerves arise from the brachial plexuses?
 
musculocutaneous, axillary, radial, median, ulnar
7
what major nerves arise from the lumbar plexuses?
 
femoral and orburator nerves
8
what major nerves arise from the sacral plexuses?
 
sciatic nerve
9
IN function, how does the posterior spinal root differ from the anterior spinal root?
 
posterior spinal root carries sensory implulses to the spinal cord and the anterior spinal...
10
what causes the cervical enlargement of the spinal cord?
 
due to increased neural information coming from and going to the upper extremities
11
where is the filum terminale found?
 
found attaching the inferior portion of the spinal cord to the coccyx
12
what is the conus medullaris?
 
the terminal portion of the solid part of the spinal cord. Found at about the level of L1 or...
13
what is the cauda equina?
 
a structure that is composed of parallel fibers that continue from the conus medullaris into...
14
What is the endoneurium?
 
the connective tissue sheath that wraps around the individual nerve fiber
15
In the spinal cord, which is deep to the other,  the white matter or the gray matter?
 
gray matter is deep to the white matter
16
What is the area of gray matter that is found between the lateral halves of the spinal cord?
 
central commissure
17
The subarachnoid space is filled with what fluid?
 
cerebralspinal fluid


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