Labial Branches of the Superior Infraorbital Nerve

The labial and superior submandibular nerves are branches of the trigeminal nerve. The superior labial nerves innervate the upper lip and gum. The inferior labial nerves also innervate the lower lip and gum, as well as the cheek and chin.

The upper lip is supplied by two nerves: the infraorbital and submandibular nerves. The upper lip is innervated by nerves that arise from the infraorbital arch and submandibular arch. These nerves are called the superior labial nerves and the branches of these nerves are called labial rami.

The superior labial rami is a branch of the infraorbital nerves and arises from the lower part of the infraorbital arch. They go to the upper lip and innervate it. The lips are also supplied by the inferior labial nerves and branches of the submandibular nerves.

Thus, the superior labial rami of the superior infraorbital nerves are a branch of the trigeminal nerve and innervate the upper part of the lip.

**Labial branches of the Superior Infraorbital Nerves (rami Labiales Superioris)** are a branch of the first main and second cardinal (apical branches) of the large intermediate nerve, which emerges from the axillary foramen and nourishes the skin of the lips and mucous membrane. The nerve is in an embryonic state. The localization is superficial to the lateral surface of the body of the sphenoid bone. It does not emerge from the level between the first and second upper impacted branches of the seventh tooth. Entering the labiovarus fold of the face, it comes out. After exiting, it bends slightly and descends to the level of the upper edge of the body of the lower jaw.

In addition, in the temporal fossa there are a couple more nerves that go to the left and right and end on the nerves that carry the meniscus downwards. The lower branches of the superior infraorbital nerves are the facial nerves. Once under the skin of the temple, the lower branches of the nerve pass into the buccal opening at a distance just below the middle cartilage of the nasal wing. The branch ends on the slit that goes around the edge of the mouth. The superior branch of the superior nerve branches and enters the superior nasal opening, exits under the wing of the nose into the orbital fossa, forming the cutaneous branch of the external granulosa of the fossa ovale. The labial branch passes to the mucous membrane of the lip. It forms a superficial branch - the venous branch of the scrotum, supplying blood to the skin of the upper lip and papilloma. The lips surround the duct of the mandibular incisor, on which there is the palate and a bundle of veins with fibers of the cutaneous branch of the branches of the supraorbital periphery, as well as the nerve.