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:
1906
Catalogue details

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.

    25/1184 (page 25)
    THE PRINCIPLES AND PRACTICE OF DENTISTRY. CHAPTER I. ANATOMY AND PHYSIOLOGY OF THE MOUTH. The mouth (oral or buccal cavity) is the entrance to the alimentary canal, and in the human subject signifies the space included between the palatine arch above, the mylo-hyoid muscles beneath, the lips in front, the soft palate and fauces behind, and the cheeks on either side. The teeth and closed jaws separate the inner portion, or lingual cavity, from the outer, or vestibular space. The form of the mouth is nearly oval, and it is lined with mucous membrane, which is continuous with the integument at the free mar¬ gin of the lips, and with the same membrane lining the fauces be¬ hind. The mucous membrane of the mouth is naturally of a rose-pink tinge, covered by stratified epithelium, and variable in thickness, being very thick where it covers the hard parts bounding this cavity. In the mouth are the tongue, teeth, and the alveolar ridges invested by the gums; into it are poured the secretion of the parotid, sub-maxil¬ lary, and sublingual glands, as well as that of the ordinary mucous and of the special lingual follicles; and in it the food is subjected to the processes of mastication and insalivation previous to deglutition. It is further concerned in the prehension of aliment; and besides containing the organs of taste, is employed in articulation, expecto¬ ration, suction, etc.