Special visceral afferent

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Special visceral afferent (SVA) refers to afferent nerves supporting the gastrointestinal tract.[1] Examples of nerves containing SVA fibers include the olfactory nerve, the facial nerve, the glossopharyngeal nerve, and the vagus nerve.[2]


  1. Norman/Georgetown cranialnerves
  2. Mehta, Samir et al. Step-Up: A High-Yield, Systems-Based Review for the USMLE Step 1. Baltimore, MD: LWW, 2003.

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