Ascending And Descending Tracts Of Spinal Cord Ppt Online
PowerPoint Presentation Guide
Title Slide
- Title: Ascending & Descending Tracts of the Spinal Cord
- Subtitle: Sensory Pathways to the Brain & Motor Pathways from the Brain
- Your Name / Course / Date
- Image: A simple cross-section of the spinal cord showing white matter (tracts) and gray matter (horns).
The Special Couriers (Dorsal Columns): These carry "express" messages like fine touch and proprioception (knowing where your limbs are).
Slide 5: Dorsal Column – Medial Lemniscus
Title: Dorsal Column (Fine Touch & Vibration) Content: ascending and descending tracts of spinal cord ppt
- Lateral Corticospinal Tract: Crossed fibers. Controls distal muscles (hands).
- Anterior Corticospinal Tract: Uncrossed fibers. Controls axial muscles (trunk).
- Title: "Corticospinal Tract"
- Bullet points:
The Executive Orders (Corticospinal Tracts): These carry voluntary commands, like deciding to wave your hand. PowerPoint Presentation Guide Title Slide
- 1st Order Neuron: Enters dorsal horn.
- 2nd Order Neuron: Synapses immediately in the dorsal horn $\rightarrow$ Crosses midline via the anterior white commissure.
- 3rd Order Neuron: Ascends contralaterally (opposite side) $\rightarrow$ Thalamus $\rightarrow$ Sensory Cortex.
- Title: "Vestibulospinal Tract"
- Bullet points: