PTERYGOPALATINE FOSSA 1)Overview and Topographic Anatomy GENERAL INFORMATION  Pyramid-shaped fossa on the lateral aspect of the skull between the maxilla’s infratemporal surface and the pterygoid process of the sphenoid Contains major nerves and blood vessels that supply the nasal cavity, upper jaw, hard palate, and soft palate: the maxillary division of the […]

Origin and Course of Maxillary Nerve. Maxillary nerve is the 2nd division of trigeminal nerve. It is a pure sensory nerve. It commences from the anterior aspect of trigeminal ganglion. It passes…

Sensory innervation of the mouth The innervation of the oral cavity is distinct and comes primarily from the maxillary and mandibular divisions of the trigeminal nerve. Roof of the mouth is innervated by The greater palatine and nasopalatine nerves from the maxillary division of the trigeminal nerve.  Hard Palate The hard palate is formed by the palatine processes of the maxillae and the horizontal plates of the palatine bones . It is continuous behind with the soft palate. Soft Palate…

The largest contributor is the infraorbital nerve. Tributaries of the infraorbital nerve or maxillary nerve trunk include the zygomatic, the anterior, middle, and posterior superior alveolar, the greater and lesser palatine, and the nasopalatine nerves.

Both palatine nerves join with the maxillary nerve from the palate. The greater palatine nerve or GP nerve (or anterior palatine nerve) with its nerve trunk located in the deepest part of the mucoperiosteum and bone of the posterior hard palate and its branches closer to the surface.

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Sensory innervation of the mouth The innervation of the oral cavity is distinct and comes primarily from the maxillary and mandibular divisions of the trigeminal nerve. Roof of the mouth is innervated by The greater palatine and nasopalatine nerves from the maxillary division of the trigeminal nerve.  Hard Palate The hard palate is formed by the palatine processes of the maxillae and the horizontal plates of the palatine bones . It is continuous behind with the soft palate. Soft Palate…

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An overview of the trigeminal nerve, including its course, nuclei, roots, branches, embryology and clinically relevant anatomy.