Special visceral afferent
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Special visceral afferent (SVA) refers to afferent nerves that develop in association with the gastrointestinal tract.[1] They carry the special senses of smell (olfaction) and taste (gustation). The cranial nerves containing SVA fibers are the olfactory nerve (I), the facial nerve (VII), the glossopharyngeal nerve (IX) and the vagus nerve (X). The facial nerve receives taste from the anterior two-thirds of the tongue; the glossopharyngeal from the posterior third. SVA fibres in the vagus originate in the epiglottis and pharynx.[2]
[edit] References
- ^ cranialnerves at The Anatomy Lesson by Wesley Norman (Georgetown University)
- ^ Drake et al. (2010), Gray's Anatomy for Students, 2nd Ed., Churchill Livingstone.
[edit] External links
