The lips, tongue, and teeth have a denser innervation and, therefore, a larger area of representation in VPM. This would also be true for the finger region of VPL. Note that VPM (arrow) is located just medial to VPL.
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Ch 06: Head Somatic & Visceral Sensory Systems
Author:
M.D.Stephen VoronLecturer
University of Utah
USA
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