(IMAGE (TYPE "GIF") (PATH "gifs/Syllabus Chapters/SomatoSpthal/Spthal.pons.gif")) (OUTLINE-COLOR (NAME "YELLOW")) (STRING-COLOR (NAME "RED")) (PIN-COLOR (NAME "RED")) (FRAME-INFO (STRING "Spinothalamic Tract, Pons. The spinothalamic tract continues to ascend through the pons at the lateral edge of the medial lemniscus. The primary \(uncrossed\) and secondary \(crossed\) trigeminal components \(green lines\) are shown; the primary fibers carrying pain and temperature information from the face and head descend \(spinal trigeminal tract\) to the caudal medulla and upper cervical spinal cord and terminate in the spinal trigeminal nucleus at those levels. The secondary fibers have already crossed and are shown ascending with the contralateral spinothalamic tract on the left of the image \(see previous frame\).")) 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