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8/14/2019 OVCMT, NA- lec. 2
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MeningesMeninges
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Intracranial hematomasIntracranial hematomas
subdural epidural
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Subarachnoid hemorrhageSubarachnoid hemorrhage
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External Anatomy of the Spinal CordExternal Anatomy of the Spinal Cord
note that the lumbar
enlargement is located
in the thoracic region
lumbar nerves then
extend inferiorly as the
cauda equina, into the
lumbar region
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Internal Anatomy of the Spinal CordInternal Anatomy of the Spinal Cord
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Comparison of Spinal Cord RegionsComparison of Spinal Cord Regions
cervicaland lumbar- enlarged anterior
grey horn corresponds with innervation
to the upper and lower extremities
thoracic- slightlyenlarged lateral grey
horn corresponds with sympathetic
outflow
sacral- enlarged anterior grey horn
corresponds with parasympathetic
outflow
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Internal Anatomy of the Spinal CordInternal Anatomy of the Spinal Cord
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Sensory and Motor TractsSensory and Motor Tracts
tracts are named according to origin, destination and spinal
location
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Sensory tractsSensory tracts
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Motor tractsMotor tracts
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Conditions Affecting the Spinal CordConditions Affecting the Spinal Cord
spina bifida cystica lumbar spondylolisthesis
with degenerative disc and
narrowed IVF
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Anatomy of the Spinal NerveAnatomy of the Spinal Nerve grey rami located along the length of
the cord
white rami only found inthoracolumbar region
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Conditions Affecting Spinal NervesConditions Affecting Spinal Nerves
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Bells PalsyBells Palsy
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Cervical Plexus (C1 4/5)Cervical Plexus (C1 4/5)
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Brachial Plexus (C5 T1)Brachial Plexus (C5 T1)
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Conditions Affecting the Brachial PlexusConditions Affecting the Brachial Plexus
Erb duchenes palsy
injury to the upper brachial plexus (C5-6)
resulting arm position is adduction, medial
rotation and elbow extension
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Lumbar Plexus (L1 4)Lumbar Plexus (L1 4)
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Sacrococcygeal Plexus (L4 S3, S4 - Co)Sacrococcygeal Plexus (L4 S3, S4 - Co)
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Intercostal Nerves (T2 12)Intercostal Nerves (T2 12)
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Dermatomes and Cutaneous InnervationDermatomes and Cutaneous Innervation