Ramus inferior, is the third branch of the fifth pair of nerves. It passes through the foramen ovale of the os sphenoides, where it gives off several branches to the muscles of the lower jaw, then throws a remarkable branch through the lower jaw to supply the teeth; which comes out at the anterior part of the channel, and branches upon the lip. From this a capital branch is detached to the tongue, called the lingual, which runs between the two pterygoid muscles, and passes to the top of the tongue, going with the duct of the maxillary gland. From this the chorda tympani is derived. See Trigemini.

Maxillaris superior nervus. The upper maxillary .nerve is the second branch of the fifth pair. It passes through the foramen rotundum of the os sphenoides, where it throws off a branch to the palate; but the trunk passes on in the sulcus of the upper auxiliary bone, goes to the upper jaw, and to its antrum. It then comes out below the orbit, and is diffused upon the face, particularly upon the nose, the upper lip, and cheek. Sec Trigemini.