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How is the sensory nerve supply to the nose mapped ?

| March 4, 2013 | 0 Comments

How is the sensory nerve supply to the nose mapped ?

  • Olfactory fibers are located in the superior portion of the internal nose and serve the sensory function of smell.
  • The sensory innervation of the skin of the root of the nose is derived from the supratrochlear and infratrochlear branches of the ophthalmic nerve.
  • Branches of the infraorbital nerve supply the skin on the lower half of the nose’s side.
  • Nasociliary branches of the ophthalmic nerve supply the skin over the lower dorsum of the nose down to the tip.
  • The trigeminal nerve supplies general sensory innervation to the anterior internal nose through the anterior ethmoidal, external, and internal nasal branches.

How is the sensory nerve su How is the sensory nerve supply to the nose mapped ?

 

  • The lateral posterior superior, pharyngeal, \and lateral posterior inferior branches of the maxillary nerve supply the posterior portion.
  • The terminal branches of the infraorbital nervesupply the lining of the nasal vestibule.
  • The internal nasal (anterior ethmoidal) and medial posterior superior branches supply the septum anterior and posterior portions, respectively.
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Category: Oral Anatomy

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