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Head, neck and vertebral column
Published in David Heylings, Stephen Carmichael, Samuel Leinster, Janak Saada, Bari M. Logan, Ralph T. Hutchings, McMinn’s Concise Human Anatomy, 2017
David Heylings, Stephen Carmichael, Samuel Leinster, Janak Saada, Bari M. Logan, Ralph T. Hutchings
Buccal nerve - another mandibular nerve branch, it emerges through the lateral pterygoid to run down superficial to the buccinator to below the parotid duct; it supplies skin of the cheek as well as mucous membrane on the lateral oral cavity. In dissections of the infratemporal region (as in Fig.3.23), note the three mandibular nerve branches running downwards: buccal, lingual and inferior alveolar, in that order from anterior to posterior, with the last two coming out between the two pterygoid muscles.
The Stomach (ST)
Published in Narda G. Robinson, Interactive Medical Acupuncture Anatomy, 2016
Buccal nerve from mandibular nerve (CN V3): A small sensory branch of the mandibular nerve that provides sensation to the cheek skin and its mucosal lining, as well as the posterior portion of the buccal gingivae.
Head and Neck
Published in Rui Diogo, Drew M. Noden, Christopher M. Smith, Julia Molnar, Julia C. Boughner, Claudia Barrocas, Joana Bruno, Understanding Human Anatomy and Pathology, 2018
Rui Diogo, Drew M. Noden, Christopher M. Smith, Julia Molnar, Julia C. Boughner, Claudia Barrocas, Joana Bruno
The mandibular nerve (CN V3) gives off the inferior alveolar nerve, which passes through the mandibular foramen, runs with the inferior alveolar vessels, and then passes distally into the mandibular canal. The inferior alveolar nerve subsequently innervates the mandibular teeth before it gives off a branch called the mental nerve, which passes through the mental foramen visible on the outer surface of the mandible to innervate the chin and lower lip. Note that the mylohyoid nerve is a branch of the inferior alveolar nerve that does not go through the mandibular canal; it provides motor innervation to the mylohyoid muscle, so it runs instead through the mylohyoid groove on the inner side of the mandible. The lingual nerve is also a branch of the mandibular nerve (CN V3): It emerges between the lateral and medial pterygoid muscles just anterior to the inferior alveolar nerve. Here, the lingual nerve passes medial to the 3rd mandibular molar tooth and innervates the mucosa of the anterior two-thirds of the tongue and floor of the oral cavity. This explains why during an invasive dental procedure, when a mandibular nerve block is produced by injecting a dental anesthesia agent into the infratemporal fossa, the drug will anesthetize not only the mandibular teeth (inferior alveolar nerve) but also the lower lip and chin (mental nerve) and the tongue (lingual nerve). The lingual nerve carries branches supplying the mucosa of the anterior two-thirds of the tongue with taste fibers and general sensation, and sends two short branches to the submandibular ganglion. Also note that the chorda tympani joins the posterior side of the lingual nerve. Other branches of the mandibular nerve (CN V3) that lie in the temporal region are the buccal nerve and the auriculotemporal nerve. The auriculotemporal nerve passes between the head of the mandible and the external acoustic meatus and crosses the zygomatic process of the temporal bone to innervate the skin of the anterior side of the ear and temporal region. The auriculotemporal nerve carries postganglionic parasympathetic nerve fibers from the otic ganglion to the parotid gland. The buccal nerve emerges from deep to the masseter muscle to innervate the skin of the cheek, and to pierce the buccinator to provide sensory innervation to the mucosa of the cheek.
Oral mucosa grafting in periorbital reconstruction
Published in Orbit, 2018
Buccal mucosa is delimited by the outer commissure of the lips anteriorly, the anterior tonsillar pillar posteriorly, the maxillary vestibular fold superiorly, and the mandibular vestibular fold inferiorly. Vascular supply is derived predominantly from branches of the maxillary artery. These include the buccal artery, the middle and posterior superior alveolar arteries, and the anterior superior alveolar branch of the infraorbital artery. The transverse facial artery, a branch of the superficial temporal artery provides additional blood supply. Buccal mucosa is innervated by the long buccal nerve, a branch of the third division of the trigeminal nerve (CNV3) and the anterior, middle, and posterior superior alveolar branches of the second division of the trigeminal nerve (CNV2). The facial nerve also contributes sensory innervation to the buccal mucosa.74,75