Ascending And Descending Tracts Of Spinal Cord Ppt | LEGIT – 2026 |

This article provides a comprehensive overview of the , structured to be easily adapted into a PowerPoint (PPT) presentation.

Transmits sensation from the upper limbs and trunk (upper body). Pathway: Receptor →right arrow Dorsal Root Ganglion →right arrow Dorsal Column →right arrow Medulla (Decussation) →right arrow →right arrow Sensory Cortex. B. Spinothalamic System (Anterolateral System) Function: Pain, temperature, and crude touch.

Slide 2: Ascending Tracts

Responsible for fine touch, conscious proprioception, and vibration sense. Spinothalamic Tracts: Lateral: Transmits pain and temperature. Anterior: Transmits crude touch and pressure. ascending and descending tracts of spinal cord ppt

: Projects from the thalamus to the primary somatosensory cortex. Tract Group Specific Tracts Primary Function Dorsal Column (DCML) Fasciculus Gracilis & Cuneatus Fine touch, vibration, and conscious proprioception. Anterolateral System Lateral & Anterior Spinothalamic

The ascending and descending tracts of the spinal cord play a vital role in maintaining normal bodily functions. Damage to these tracts can result in various neurological disorders, such as:

Cross-Sectional Anatomy of the Spinal Cord (Gray vs. White Matter) This article provides a comprehensive overview of the

: 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

Originates in vestibular nuclei; regulates balance and posture in response to head movements.

Results in ipsilateral (same side) loss of motor function (corticospinal) and fine touch (PCML), alongside contralateral (opposite side) loss of pain and temperature (spinothalamic). – Categorization of sensory inputs (exteroceptive

– Categorization of sensory inputs (exteroceptive, proprioceptive, interoceptive).

These pathways originate in the brainstem and regulate involuntary movements, balance, muscle tone, and posture.

Slide 4-5: Descending Tracts

This system lies in the anterior and lateral funiculi and is split into two major pathways: