Before diving into specific tracts, a presentation must establish the "geography" of the spinal cord.
The spinal cord consists of (internal, butterfly-shaped, cell bodies) and White Matter (external, myelinated axons). The White Matter is divided into three main columns, or funiculi: ascending and descending tracts of spinal cord ppt
| Tract | Modality | Decussation | Lesion Deficit | | :--- | :--- | :--- | :--- | | DCML | Fine touch, vibration | Medulla | Ipsilateral loss | | Spinothalamic | Pain, temperature | Spinal cord | Contralateral loss | | Spinocerebellar | Unconscious proprioception | None | Minimal deficit | Before diving into specific tracts, a presentation must
1️⃣ Dorsal Column = Fine touch & vibration (ipsilateral). 2️⃣ Lateral Corticospinal = Voluntary movement (contralateral). 3️⃣ Anterolateral System = Pain & temperature (crosses right away). Before diving into specific tracts
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