Point 7


Root

Columns

ALS

DSCT

LCST

Vent Horn

Lat Horn

Problems


Contents

Anatomy

  

Dorsal Columns - Pathway DiagramDorsal Root Entry ZoneThe deficits are IPSI and involve T1 and below. The deficits includes two point disc. vibration sense, conscious proprioception, astereognosis and agraphesthesia. If you add these deficits to the loss of pain, temperature, and crude touch from T2 and T3 (from cutting the ascending C and delta fibers discussed above in #1), you can see that spinal levels T2 and T3 are, like T1, ANESTHETIC. Any problems in coordination from a lesion of the dorsal columns are overshadowed by other deficits (spasticity and muscle atrophy) to be discussed.