Anterior superior alveolar nerve
| Anterior superior alveolar nerve | |
|---|---|
Alveolar branches of superior maxillary nerve and sphenopalatine ganglion. | |
| Details | |
| From | Infraorbital nerve |
| Innervates | Dental alveolus |
| Identifiers | |
| Latin | rami alveolares superiores anteriores nervi maxillaris, ramus alveolaris superior anteriores |
| TA98 | A14.2.01.052 |
| TA2 | 6241 |
| FMA | 52935 |
| Anatomical terms of neuroanatomy | |
The anterior superior alveolar nerve (or anterior superior dental nerve) is a sensory branch of the infraorbital nerve (itself a branch of the maxillary nerve (CN V2)).[1] It passes through the canalis sinuosus and descends in the anterior wall of the maxillary sinus.[2] It contributes to the superior dental plexus and provides sensory innervation to the upper front teeth and adjacent structures.[2] Through its nasal branch, it also innervates parts of the nasal cavity.[1][3] It is clinically relevant in dental anesthesia and procedures involving the anterior maxilla.[3]
Anatomy
Course and distribution
It branches from the infraorbital nerve within the infraorbital canal[1][4] at around the midpoint of this canal and enters the canalis sinuosus. It passes through towards the nose before passing inferior-ward and ramifying[4] into branches which innervate the upper/maxillary incisor and canine teeth;[1][4] it usually innervates all the anterior teeth.[3]
Nasal branch
It issues a nasal branch which passes through a minute canal in the lateral wall of the inferior nasal meatus and innervates the mucous membrane of the floor and anterior portion of lateral wall (as far superiorly as the opening of the maxillary sinus) of the nasal cavity.[5] It ultimately emerges close to the root of the anterior nasal spine to innervate the adjacent portion of nasal septum.[4]
Communications
The nerve participates in the formation of the superior dental plexus[4] by looping posterior-ward to[3] communicate with the middle superior alveolar nerve.[6]
The nasal branch communicates with nasal branches of the sphenopalatine ganglion.[4]
See also
References
- ^ a b c d Jones, Frederic Wood (July 1939). "The anterior superior alveolar nerve and vessels". Journal of Anatomy. 73 (Pt 4): 583–591. PMC 1252464. PMID 17104781.
- ^ a b Sun, Zheyuan; Lou, Yiting; Liu, Zhichao; Wang, Baixiang; Yu, Mengfei; Wang, Huiming (2024-05-20). "Anatomy and function of the canalis sinuosus and its injury prevention and treatment strategies in implant surgery". Journal of Zhejiang University (Medical Sciences). 53 (5): 561–568. doi:10.3724/zdxbyxb-2023-0502. ISSN 1008-9292. PMC 11528142. PMID 38763767.
- ^ a b c d Tomaszewska, I. M.; Zwinczewska, H.; Gładysz, T.; Walocha, J. A. (2015-05-28). "Anatomy and clinical significance of the maxillary nerve: a literature review". Folia Morphologica. 74 (2): 150–156. doi:10.5603/FM.2015.0025. ISSN 1644-3284.
- ^ a b c d e f Standring, Susan (2020). Gray's Anatomy: The Anatomical Basis of Clinical Practice (42th ed.). New York. p. 656. ISBN 978-0-7020-7707-4. OCLC 1201341621.
{{cite book}}: CS1 maint: location missing publisher (link) - ^ Heasman, P.A. (December 1, 1984). "Clinical anatomy of the superior alveolar nerves". British Journal of Oral and Maxillofacial Surgery. 22 (6): 439–447. doi:10.1016/0266-4356(84)90051-2. ISSN 0266-4356.
- ^ Gray, Henry (1918). Gray's Anatomy (20th ed.). p. 891.
External links
- MedEd at Loyola GrossAnatomy/h_n/cn/cn1/cnb2.htm
- cranialnerves at The Anatomy Lesson by Wesley Norman (Georgetown University) (V)
