Download Spinal Cord Worksheet - District 196 e

Functional Organization of the Spinal Cord !
Name:_________________________
Module 12.1
Label figure 1 using the following terms:
white matter, gray matter, anterior, posterior, dorsal root, ventral root, spinal nerve,
dorsal root ganglion, central canal.
Questions:
!1.! Explain the nature of the numbering system used to identify the 31 pairs of spinal
! ! nerves.
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2
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!3.!
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Provide what each of the following structures contain.
! a.! gray matter! b.! white matter! c.! dorsal root! d.! ventral root! e.! spinal nerveIn total, how many dorsal root ganglia are found in the human body (Hint number of
spinal nerves)?
! .! If gray matter is greatest in segments of the spinal cord dedicated to sensory and
4
! ! motor control, explain the reason for the cervical and lumbar enlargements
Module 12.2
In figure 2, use different colors the following structures
color: structure:
!pia mater
arachnoid mater
dura mater
cerebrospinal fluid
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Functional Organization of the Spinal Cord !
Name:_________________________
Questions:
!1.! What is the function of the spinal meninges? Cerebrospinal fluid (CSF)?
! .! List the structures which prevent lateral and superior-inferior movement of the spinal
2
! ! chord.
! .! List, in order, the sequence of spinal coverings that would be penetrated during a
3
! ! lumbar puncture procedure.
! .! Give an explanation as to why the lumbar puncture procedure is performed at or
4
! ! below vertebrate L3.
Module 12.3
Label figure 1 using the following terms:
posterior gray horn, anterior gray horn, gray commissures, sensory nuclei, motor nuclei,
posterior white column, anterior white column.
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Questions:!
!1.! Define:
! ! ! a.! nuclei! ! ! b.! tract!2.! What type of information is relayed in the ascending and descending tracts?
! .! A person with polio has lost the use of his legs. In which area of his spinal cord
3
! ! would you expect the virus-infected motor neurons to be?!
! .! A disease that damages myelin sheaths would affect which portion of the spinal
4
! ! cord?
Functional Organization of the Spinal Cord !
Name:_________________________
Module 12.4
Questions:
!1.! What is the meaning of the term rami? !
!2.! What do the dorsal rami innervate? Ventral rami?
!3.! What is a dermatome and why are they clinically important?
! .! On figure 2, circle and label the location where the VZV may lay dormant in
4
! ! individuals who have had chicken pox.
Module 12.6
Questions:
!1.! What is a nerve plexus?
!2.! List the four major plexuses and give the spinal nerves which are associated.
! .! Complete the following on the plexuses:!
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! ! Which of the four plexuses controls the diaphragmatic muscles?
! ! Damage to this region of the spinal cord would require a mechanical respirator to
! ! keep the victim alive (try to be specific): !
! ! The largest and longest nerve in the body belongs to this plexuses:
! ! When somebody says “I hit my funny bone”, to what nerve at to what plexuses are
! ! they referring?
Functional Organization of the Spinal Cord !
figure 1:
figure 2
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Name:_________________________