The topographical anatomy of the head and neck of the horse / [O. Charnock Bradley].
- Orlando Charnock Bradley
- Date:
- 1923
Licence: In copyright
Credit: The topographical anatomy of the head and neck of the horse / [O. Charnock Bradley]. Source: Wellcome Collection.
79/248 page 63
![(4) X. Jmccinatorius.—The relatively large buccinator nerve usually leaves the mandibular in common with the pterygoid nerve. It runs downwards and forwards across the medial aspect of the mandibular joint and over the origin of the external pterygoid muscle to gain the deep face of the masseter, where an examination of it has already been effected (])age 51). (5) A. teDiporalis superficinlis.—The superficial temporal nerve bends round the back of the mandibular joint, where it lies upon the joint-capsule, to gain the face and divide into two branches, as the dissection of the face has shown (page 37). (fi) A. alveolaris inferior.—The inferior alveolar and lingual nerves leave the mandibular as a common nerve-cord that crosses obliquely over the lateral face of the internal maxillary artery. Thereupon the two nerves separate. The inferior alveolar nerve passes between the two pterygoid muscles in company with the inferior alveolar vessels. The three structures then run between the internal pterygoid muscle and the mandible and enter the mandibular canal together. The nerve supplies branches to the teeth and gums and emerges from the mandibular canal by the mental foramen as the mental nerve (n. mental is), which ends in a number (six or more) of branches that ramify in the lower lip and the region of the chin. The mylo-hyoid nerve (n. mylohyoideus) leaves the inferior alveolar at the mandibular foramen and follows a shallow groove on the medial surface of the mandible. It supplies the mylo-hyoid and mylo-glossal muscles and the anterior belly of the digastricus. (7) X. linfjualis.—The lingual nerve is almost as large as the inferior alveolar. At first it lies between the internal pterygoid muscle and the mandible, and then between the mylo-hyoid and stylo-glossal muscles. Its course within the tongue will be determined later. Close to its independent origin, or even while still in union with the inferior alveolar, the lingual nerve is joined by the chorda tympani, a branch of the seventh cerebral nerve. N. GLOSSorHAitYN(;EUS.—The glosso-pharyngeal or ninth cerebral nerve will be found between the great cornu of the hyoid bone and the .external carotid artery, where it lies on the diverticulum of the auditory tube. Its pharyngeal branch (ramus phai'yngeus) crosses the medial surface of the great cornu to reach the wall of the pharynx, where it comes into relation with the ascending palatine artery. Along with branches of the vagus and other nerves it assists in the formation of the pharyngeal plexus. The lingual branch (ramus lingualis) continues the line of the course of the main nerve—of \vhich it is much](https://iiif.wellcomecollection.org/image/b29820066_0079.jp2/full/800%2C/0/default.jpg)
