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Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System: Cranial Nerves and Ganglia: Infraorbital Nerve

Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System: Cranial Nerves and Ganglia

Infraorbital Nerve

Ronald A. Bergman, PhD
Adel K. Afifi, MD, MS
Ryosuke Miyauchi, MD

Peer Review Status: Internally Peer Reviewed


In about 54% of cases, a middle alveolar nerve arises from the infraorbital, 28% show significant variation, and in 18% the middle alveolar nerve is absent.

The branch supplying the upper lip may run independently in the floor of the orbital cavity; other branches of the nerve arise earlier and enter another canal medial to the main channel.

The nerve may be doubled.

Image 17


References

Cushing, H. (1904) The sensory distribution of the fifth cranial nerve. Johns Hopkins Hospital Bulletin 15:213-232.

Jordan, J. (1967) Double infraorbital nerve in man. Folia Morphol., (Warsaw) 26:405-407.

Huber, G.C., Ed. (1930) Piersol's Human Anatomy, 9th ed., L.B. Lippincott Co., Philadelphia.

Leo, J., Cassell, M.D. and R.A. Bergman. (1995) Variations of human infraorbital nerve, canal and foramen. Annals Anat. 177:291-294.

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