Superior Dental Plexus

	Superior Dental Plexus The superior dental plexus is a nerve plexus which supplies the upper jaw. Formed by posterior superior alveolar nerve, middle superior alveolar nerve, and anterior superior alveolar nerve. See also * Inferior dental plexus The inferior dental plexus is a nerve plexus which supplies the lower jaw. It is branches off of the inferior alveolar nerve and functions as innervation to the mandibular molars, first bicuspid, and part of the second bicuspid. The inferior denta ... Maxillary nerve {{Neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Maxillary Nerve In neuroanatomy, the maxillary nerve (V) is one of the three branches or divisions of the trigeminal nerve, the fifth (CN V) cranial nerve. It comprises the principal functions of sensation from the maxilla, nasal cavity, sinuses, the palate and subsequently that of the mid-face, and is intermediate, both in position and size, between the ophthalmic nerve and the mandibular nerve.Illustrated Anatomy of the Head and Neck, Fehrenbach and Herring, Elsevier, 2012, page 180 Structure It begins at the middle of the trigeminal ganglion as a flattened plexiform band then it passes through the lateral wall of the cavernous sinus. It leaves the skull through the foramen rotundum, where it becomes more cylindrical in form, and firmer in texture. After leaving foramen rotundum it gives two branches to the pterygopalatine ganglion. It then crosses the pterygopalatine fossa, inclines lateralward on the back of the maxilla, and enters the orbit through the inferior orbital fissure. It then r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Mandibular Nerve In neuroanatomy, the mandibular nerve (V) is the largest of the three divisions of the trigeminal nerve, the fifth cranial nerve (CN V). Unlike the other divisions of the trigeminal nerve (ophthalmic nerve, maxillary nerve) which contain only afferent fibers, the mandibular nerve contains both afferent and efferent fibers. These nerve fibers innervate structures of the lower jaw and face, such as the tongue, lower lip, and chin. The mandibular nerve also innervates the muscles of mastication. Structure The large sensory root emerges from the lateral part of the trigeminal ganglion and exits the cranial cavity through the foramen ovale. Portio minor, the small motor root of the trigeminal nerve, passes under the trigeminal ganglion and through the foramen ovale to unite with the sensory root just outside the skull. The mandibular nerve immediately passes between tensor veli palatini, which is medial, and lateral pterygoid, which is lateral, and gives off a meningeal branch (n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Submaxillary Ganglion The submandibular ganglion (or submaxillary ganglion in older texts) is part of the human autonomic nervous system. It is one of four parasympathetic ganglia of the head and neck. (The others are the otic ganglion, pterygopalatine ganglion, and ciliary ganglion). Location and relations The submandibular ganglion is small and fusiform in shape. It is situated above the deep portion of the submandibular gland, on the hyoglossus muscle, near the posterior border of the mylohyoid muscle. The ganglion 'hangs' by two nerve filaments from the lower border of the lingual nerve (itself a branch of the mandibular nerve, CN V3). It is suspended from the lingual nerve by two filaments, one anterior and one posterior. Through the posterior of these it receives a branch from the chorda tympani nerve which runs in the sheath of the lingual nerve. Fibers Like other parasympathetic ganglia of the head and neck, the submandibular ganglion is the site of synapse for parasympathetic fibers and carri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Posterior Superior Alveolar Nerve The posterior superior alveolar branches (posterior superior dental branches) arise from the trunk of the maxillary nerve just before it enters the infraorbital groove; they are generally two in number, but sometimes arise by a single trunk. They descend on the tuberosity of the maxilla and give off several twigs to the gums and neighboring parts of the mucous membrane of the cheek. They then enter the alveolar canals on the infratemporal surface of the maxilla, and, passing from behind forward in the substance of the bone, communicate with the middle superior alveolar nerve, and give off branches to the lining membrane of the maxillary sinus and gingival and dental branches to each molar tooth from a superior dental plexus; these branches enter the apical foramina at the roots of the teeth. The posterior superior alveolar nerve innervates the second and third maxillary molars, and two of the three roots of the maxillary first molar (all but the mesiobuccal root). When giving a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Middle Superior Alveolar Nerve The middle superior alveolar nerve is a nerve that drops from the infraorbital portion of the maxillary nerve to supply the sinus mucosa, the roots of the maxillary premolars, and the mesiobuccal root of the first maxillary molar. It is not always present; in 72% of cases it is non existent with the anterior superior alveolar nerve innervating the premolars and the posterior superior alveolar nerve The posterior superior alveolar branches (posterior superior dental branches) arise from the trunk of the maxillary nerve just before it enters the infraorbital groove; they are generally two in number, but sometimes arise by a single trunk. They ... innervating the molars, including the mesiobuccal root of the first molar. External links * Maxillary nerve {{Neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Anterior Superior Alveolar Nerve The anterior superior alveolar nerve (or anterior superior dental nerve), is a branch of the infraorbital nerve, itself a branch of the maxillary nerve (V2). It branches from the infraorbital nerve within the infraorbital canal before the infraorbital nerve exits through 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 nerve, 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 p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]
	Inferior Dental Plexus The inferior dental plexus is a nerve plexus which supplies the lower jaw. It is branches off of the inferior alveolar nerve and functions as innervation to the mandibular molars, first bicuspid, and part of the second bicuspid. The inferior dental plexus does not supply innervation to the cuspids or incisors as they get innervation from the incisive branch of the inferior alveolar nerve which branches as the inferior alveolar nerve exits the mental foramen as the mental nerve. See also * Superior dental plexus The superior dental plexus is a nerve plexus which supplies the upper jaw. Formed by posterior superior alveolar nerve, middle superior alveolar nerve, and anterior superior alveolar nerve. See also * Inferior dental plexus The inferior denta ... Mandibular nerve {{neuroanatomy-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]