lateral spinothalamic tract การใช้

The lateral spinothalamic tract conveys pain and temperature.
There are two main parts : the lateral spinothalamic tract, which transmits pain and temperature, and the anterior ( or ventral ) spinothalamic tract, which transmits crude touch and pressure.
Loss of pain and temperature are due to damage to the lateral spinothalamic tracts, which cross the central part of the cord close to the level where they enter it and travel up the spinal column on the opposite side to the one they innervate ( i . e . they " ascend contralaterally " ).
Note that a lesion of the lateral spinothalamic tract at a given level will not result in sensory loss for the dermatome of the same level; this is due to the fibers of the tract of Lissauer which transmit the neuron one or two levels above the affected segment ( thus bypassing the segmental lesion on the contralateral side ).