. The anatomy of the human body. Human anatomy; Anatomy. PALATE BONES. 53 The Inferior or alveolar border (g h) is the thickest and strongest part, being, in some respects, the base of the bone. It is hollowed into conical cavities separated by thin septa. These cavities are the alveoli or sockets of the teeth : they are proportioned in dimensions to the size of the fangs which they are intended to lodge, and in like man- ner are subdivided into two, three, or four secondary cavities. The bottom of these al- veoli is in apposition with the maxillary sinus, into which they occasionally open. Th
. The anatomy of the human body. Human anatomy; Anatomy. PALATE BONES. 53 The Inferior or alveolar border (g h) is the thickest and strongest part, being, in some respects, the base of the bone. It is hollowed into conical cavities separated by thin septa. These cavities are the alveoli or sockets of the teeth : they are proportioned in dimensions to the size of the fangs which they are intended to lodge, and in like man- ner are subdivided into two, three, or four secondary cavities. The bottom of these al- veoli is in apposition with the maxillary sinus, into which they occasionally open. This border presents, especially in front, flutings or projections which correspond with the alveoli, and depressions which mark the inter-alveolar septa. In young subjects we may observe, chiefly behind the incisor teeth, some very remark- able foramina, to which much importance has been attached as connected with the phe- nomena of dentition. Infernal Structure.—This bone is remarkably light for its size, on account of the large cavity which it encloses. It is more compact than most of the short bones, and has spongy tissue only in the alveolar border, the maxillary tuberosity, and the malar eminence. Connexions.—The superior maxilla is articulated with two bones of the cranium, the frontal and the ethmoid, and with all the bones of the face. It lodges eight of the teeth of the upper jaw. Development.—Anatomists are not at all agreed respecting the number and arrange- ment of the osseous points which concur in forming the superior maxilla. In the maxillary bone of the foetus, and sometimes even in that of the adult, there are, as I can attest from observation, two very remarkable fissures, which would seem to in- dicate the primitive separation of the bone into three pieces. 1. The first fissure, which may be called the incisive fissure, is visible on each side of the arch of the palate. It commences at the septum, which divides the alveoli of the canine tooth and lateral
Size: 1729px × 1445px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
