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Anatomy Atlases: Illustrated Encyclopedia of Human Anatomic Variation: Opus III: Nervous System: Cranial Nerves and Ganglia: Buccal Nerve (N. to M. Buccinator)

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

Buccal Nerve (N. to M. Buccinator)

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

Peer Review Status: Internally Peer Reviewed


The following variations in the course and/or branches of this nerve have been reported. Instead of its usual course on the medial side of the temporal muscle, the nerve may pierce the muscle.

When absent, the nerve is replaced by the posterior superior alveolar nerves.

The buccal nerve may also arise from the inferior alveolar nerve, in which case it emerges from the inferior dental canal through a small foramen in the alveloar border of the mandible, just anterior to the ramus.

The nerve may arise directly from the gasserian (trigeminal, semilunar) ganglion, in which case it exits from the cranial cavity through a special foramen between the foramina ovale and rotundum.

Image 20


References

Burr, H.S. and G.B. Robinson (1925) An anatomical study of the gasserian ganglion, with particular reference to the nature and extent of Meckel's cave. Anat. Rec. 29:269-282.

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

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

Schaefer, E.A., Symington, J. and T.H. Bryce. Eds. (1915) Quain's Anatomy, 11th ed. Longmans, Green, and Co., London.

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