Spinal Cord Anatomy Flashcards
What are the three general divisions of the white matter in the spinal cord?
-Dorsal, lateral, and ventral funiculi
What is contained within the intermediolateral (IML) cell column?
-pre-ganglionic sympathetic neurons
Which spinal cord segments contain the intermediolateral cell column?
-Thoracic segments
lateral horn
What are the two divisions of the dorsal colum/funiculus of the spinal cord? What information do they carry?
- Gracile fasciculus
- Cuneate fasciculus
- mechanosensory
Which tracts in the spinal cord carry proprioception?
Spinocerebellar tracts
- dorsal
- ventral
- cuneocerebellar
What are the three divisions of the spinothalamic tract? What information do they carry?
- paleospinothalamic
- spinoreticular
- spinomesencephalic
- pain/temperature
At what spinal levels does the cuneate fasiculus begin?
Above T6
What sensory information is carried in the fasciculus gracilis?
-mechanosensory from below T5 (lower body)
What sensory information is carried in the cuneate fasciculus?
-Mechanosensory from above T5 (upper body)
Where does nonconscious proprioceptive information from lower extremity muscle spindle first synapse?
Clarke’s column
*stays ipsilateral to cerebellum
Where is the cuneate fasciculus located in the spinal cord relative to the gracile fasciculus?
Cuneate is lateral
