Girish Mahajan

Anterior superior alveolar nerve

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Innervates  dental alveolus
FMA  52935
TA  A14.2.01.052
Anterior superior alveolar nerve
Latin  rami alveolares superiores anteriores nervi maxillaris, ramus alveolaris superior anteriores

The anterior superior alveolar branch (anterior superior dental branch), of considerable size, is given off from the maxillary nerve (the second branch of the trigeminal nerve or cranial nerve V, abbreviated V2) just before its exit from the infraorbital foramen; it descends in a canal in the anterior wall of the maxillary sinus, and divides into branches which supply the incisor and canine teeth.

It communicates with the middle superior alveolar branch, and gives off a nasal branch, which passes through a minute canal in the lateral wall of the inferior meatus, and supplies the mucous membrane of the anterior part of the inferior meatus and the floor of the nasal cavity, communicating with the nasal branches from the sphenopalatine ganglion.

Dental considerations for this nerve are important. The anterior superior alveolar usually innervates all anterior teeth, loops backwards to join the middle superior alveolar nerve to form the superior dental plexus.

References

Anterior superior alveolar nerve Wikipedia


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