General and dental pathology with special reference to etiology and pathologic anatomy; a treatise for students and practitioners . Fig. 357.—Alveolar bone in the periapical region. The section was obtained from thealveolar bone around the apex of the root. The lamellae of bone (calcification install-ments) are easily observed, also the lacunas or bone cell spaces. The medullary or myelitic substance in the cancellated spacesbecomes the seat of an inflammation. Through osteoclastic andleucocytic action, as previously noted, the hard substance of thebone, viz., the walls of the cancellated spac
General and dental pathology with special reference to etiology and pathologic anatomy; a treatise for students and practitioners . Fig. 357.—Alveolar bone in the periapical region. The section was obtained from thealveolar bone around the apex of the root. The lamellae of bone (calcification install-ments) are easily observed, also the lacunas or bone cell spaces. The medullary or myelitic substance in the cancellated spacesbecomes the seat of an inflammation. Through osteoclastic andleucocytic action, as previously noted, the hard substance of thebone, viz., the walls of the cancellated spaces, disappear; theyare, so to speak, eaten through, and the Haversian canals aremade wider. The contents of the spaces, viz., the myelitic sub-stance, become the seat of an acute inflammation in which thecellular elements typical of this form of inflammation are time the inflamed medullary substance, as the result of the *Adami and McCrae: Textbook of Pathology, Philadelphia, & Febiger. BONE 459. big. 358.—Transverse section of tooth showing the arrangement of bone in the alveoliThe peridental membrane, it will be seen, joins with the medullary substance in the can-cellated spaces; a, a, dentin; b, b, cementum; c, c, peridental membrane; d, d, d, d sectionot compact bone lining alveolus; c, junction of peridental membrane with myeloid sub-stance. 460 DENTAL PATHOLOGY K ,.- N# i ? •< •. *. • {?*? /fc 3r^^~riS^ < -? alii Fig. 359.—Arrangement of cancellated bone in region of central incisors.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpathology, bookyear19
