The principles and practice of dentistry : including anatomy, physiology, pathology, therapeutics, dental surgery and mechanism / by Chapin A. Harris.

  • Harris, Chapin A. (Chapin Aaron), 1806-1860.
Date:
1882
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Licence: Public Domain Mark

Credit: The principles and practice of dentistry : including anatomy, physiology, pathology, therapeutics, dental surgery and mechanism / by Chapin A. Harris. Source: Wellcome Collection.

Provider: This material has been provided by the Augustus C. Long Health Sciences Library at Columbia University and Columbia University Libraries/Information Services, through the Medical Heritage Library. The original may be consulted at the the Augustus C. Long Health Sciences Library at Columbia University and Columbia University.

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    and unites with the sympathetic branches of the superior cervical gan- glion, thus connecting this ganglion with the ganglion of Meckel. The other, the proper vidian nerve, enters the vidian foramen or hiatus Fallopii in the petrous bone, joins the portio dura nerve, accom- panies this as far as the back part of the tympanum; then leaves it, enters the cavity of the tympanum, and receives there the name of Chorda Tyinpaiii. It leaves this cavity by the glenoid fissure, then joins the gustatory nerve, continues with it to the submaxillary gland, where it leaves it and is lost in the submaxillary ganglion, situated at the posterior part of the submaxillary gland. The exceedingly intricate course of the vidian nerve is interesting from the number of communications which it establishes between dif- ferent and distant parts: for it unites the ganglion of Meckel wdth the superior cervical ganglion of the sympathetic, and both with the sub- maxillary ganglion; it also connects the superior and inferior maxil- lary nerves to one another and to the portio dura. The Superior Maxillary Nerve gives off next in the spheno-maxil- lary fossa: 1. The Orbital. 2. The Posterior Dental. 3. The Anterior Dental. The Orbital enters the orbit through the spheno-maxillary fissure, and then sends oflT a malar and temporal branch, which pass out through the malar bone; the first supplying the cheek, the latter ac- companying the temporal artery to the integuments of the side of the head, receiving filaments from the facial and auriculo-temporal branch of the inferior maxillary. The Posterior Dental Nerves, two in number, descend on- the tuber- osity of the superior maxillary bone, and enter the posterior dental canals to supply the bicuspid and molar teeth; one branch penetrates the antrum and courses along the outer wall, anastomosing with the anterior dental nerves, while another runs along the alveolar border supplying the gums. The Anterior Dental is given oflT from the superior maxillary just before it escapes from the infra-orbital foramen. It anastomoses with the posterior dental, and sends filaments to the incisor, canine, and first bicuspid teeth ; others are sent to the mucous membrane of the inferior meatus. This nerve now emerges, as before mentioned, at the infra-orbital foramen, between the levator labii superioris alseque nasi and levator anguli muscles, dividing here into many branches; some of w^hich ascend to the nose and eyelids, others pass downward and outward to