Ascending And Descending Tracts Of Spinal Cord Ppt Hot!

First-order fibers enter via the dorsal root and ascend ipsilaterally (on the same side) to synapse in the nucleus gracilis and nucleus cuneatus of the lower medulla. Second-order neurons decussate in the medulla as internal arcuate fibers, forming the medial lemniscus , which ascends to the Ventral Posterolateral (VPL) nucleus of the thalamus. Third-order neurons project to the somatosensory cortex. 2. The Anterolateral System (Spinothalamic Tracts)

Ascending tracts transmit somatosensory information—such as touch, pain, temperature, and proprioception—from the body to the brain. They are generally composed of three-neuron systems (first-, second-, and third-order neurons). Main Ascending Tracts ascending and descending tracts of spinal cord ppt

I’ve just finished a comprehensive PowerPoint covering the major spinal pathways. Perfect for medical students, neuroscience majors, or anyone prepping for boards. First-order fibers enter via the dorsal root and