Spinal Cord

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Author:
catitasilva
ID:
121977
Filename:
Spinal Cord
Updated:
2011-12-08 19:02:04
Tags:
Spinal Cord
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Description:
spinal cord
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  1. Lamellae of Spinal Cord:
    I
    • Marginal
    • nociceptive
  2. Lamellae of Spinal Cord:
    II
    • Substantia Gelatinosa
    • interneurons
  3. Lamellae of Spinal Cord:
    III, IV, V
    • Nucleus Proprius
    • non-noxious
  4. Lamellae of Spinal Cord:
    VI
    • Lateral (corticospinal & rubrospinal)
    • Medial (afferent)
  5. Lamellae of Spinal Cord:
    VII
    • Dorsalis nucleus & Clarke's nucleus - non-noxious
    • Intermediolateral nucleus - C8-L2 SANS; S2-S4
  6. Lamellae of Spinal Cord:
    VIII
    Interneurons
  7. Lamellae of Spinal Cord:
    IX
    • alpha motor neurons:
    • -medial motor neurons - all levels
    • -lateral motor neurons - C5-T1; L1-S3
  8. Lamellae of Spinal Cord:
    X
    Central Canal Neurons
  9. UMN Lesion
    • spastic
    • hyperreflexia
    • large area
    • + babinski
    • increased muscle tone
  10. LMN Lesion
    • flaccid
    • areflexia
    • localized
    • - babinski
    • reduced muscle tone
  11. Complete Transection Syndrome of Spinal Cord
    • Entire cord
    • Loss of P/T & T/P/P below lesion
  12. Brown-Sequard
    • Half of spinal cord
    • I/L motor loss & T/P/P loss
    • C/L loss of P/T
  13. Friedrich's Ataxia
    • Hereditary degeneration of white matter specifically:
    • spinocerebellar tract
    • dorsal columns
    • corticospinal tract
  14. Syringomyelia
    • Center of spinal cord
    • P/T loss at or below lesion
    • restricted to region of lesion
  15. Subacute Combined Degeneration
    • B12 deficiency affecting white matter
    • B/L loss of T/P/P
    • Spastic paralysis
  16. Amyotrophic Lateral Sclerosis
    • Lou Gherig's
    • UMN & LMN lesion
    • Flaccid at the lesion
    • Spastic below the lesion
  17. Cervical Enlargement
    Lumbar Enlargement
    Conus Medullaris (newborns vs. adults)
    • Cervical Enlargement: C5-T1
    • Lumbar Enlargement: L1-S3
    • Conus Medullaris (newborns: L3; adults: L4, L5)
  18. Dorsal root has 2 divisions:
    • Medial: large & myelinated; T/P/P & P/T
    • Lateral: small & unmyelinated; Pain & itch

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