Ascending And Descending Tracts Of Spinal Cord Ppt May 2026

Slide deck: Ascending and Descending Tracts of the Spinal Cord (PowerPoint-ready)

Structure & slide count

  1. Title slide — "Ascending & Descending Tracts of the Spinal Cord" (subtitle: course/name/date)
  2. Learning objectives — 3 bullet points: identify major tracts, describe pathways and functions, clinical correlations
  3. Spinal cord overview — brief anatomy diagram (cross-section) with gray/white matter labeled
  4. White matter organization — dorsal, lateral, ventral columns; general flow (sensory up, motor down)
  5. Ascending tracts — slide header + short list of principal tracts:
    • Function: Transmits information about muscle tension and joint position to the cerebellum for coordination (non-conscious).
    • Tracts:

      What’s inside the deck: 🔹 Ascending Tracts: DCML (Dorsal Column), Spinothalamic (Anterior/Lateral), Spinocerebellar. 🔹 Descending Tracts: Corticospinal (Lateral/Anterior), Rubrospinal, Reticulospinal, Vestibulospinal. 🔹 Clinical correlates: Brown-Séquard syndrome, Syringomyelia, and ALS. 🔹 High-yield diagrams comparing lesion deficits.

      • Rubrospinal Tract: Motor coordination (facilitates flexors).
      • Vestibulospinal Tract: Balance and posture (facilitates extensors).
      • Reticulospinal Tract: Modulates pain and controls autonomic functions.
      • Tectospinal Tract: Reflex head movements in response to visual/auditory stimuli.

      Slide 13: Clinical Case – Syringomyelia

      • Cause: Cavity (syrinx) in central cord → damages anterior white commissure.
      • Findings: Bilateral loss of pain/temp in upper limbs (cape-like distribution) → preserved fine touch/vibration → later UMN signs in legs.
      • Classic dissociation: Loss of pain/temp with intact fine touch.

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