: An axial cross-section of the spinal cord with the three funiculi color-coded, plus arrows indicating direction of signal flow (⬆️ ascending, ⬇️ descending).
: Sensory pathways that carry information (pain, temperature, touch) from the periphery to the brain. Descending Tracts : Motor pathways that carry commands from the brain to control muscles. Organization : Fibres are grouped into columns called (dorsal, lateral, and ventral). Slideshare 2. Major Ascending (Sensory) Tracts These tracts typically involve a three-neuron chain: (dorsal root ganglion), (spinal cord or brainstem), and (thalamus). SlideServe Tract Name Location of Decussation Lateral Spinothalamic Pain and temperature Spinal cord (immediate) Anterior Spinothalamic Crude touch and pressure Spinal cord (1–2 segments above) Dorsal Columns Fine touch, vibration, and conscious proprioception Medulla oblongata Spinocerebellar Unconscious proprioception for coordination Mostly ipsilateral (same side) 3. Major Descending (Motor) Tracts These are divided into (voluntary movement) and Extrapyramidal (involuntary/postural) systems. TeachMeAnatomy Pyramidal Tracts (Corticospinal) Lateral Corticospinal ascending and descending tracts of spinal cord ppt
This is just a suggested outline, and you can add or remove slides as per your requirement. You can also add more images, diagrams, and illustrations to make the content more engaging and easy to understand. : An axial cross-section of the spinal cord
Understanding these tracts is vital for diagnosing spinal cord injuries. For instance, Brown-Séquard syndrome (a hemisection of the cord) results in:Ipsilateral loss of motor function and fine touch (Corticospinal and Posterior Columns).Contralateral loss of pain and temperature (Spinothalamic Tract). Summary for Presentation Organization : Fibres are grouped into columns called
Controls proximal/axial muscles; remains uncrossed until the spinal level.
Hemisection of the cord leading to ipsilateral loss of motor/fine touch and contralateral loss of pain/temperature.
Most pathways cross over, meaning the right brain controls the left body, and vice versa.