. The principles and practice of modern surgery . t, thenewly-formed shell contracts, its cavity is abolished, and it graduallyassumes the shape and function of the former bone. Microscopical Appearances of Diseased Bone.—Healthy bone, M^hen athin section is examined under the microscope, is shown to consist of an * Vide Sir B. Brodies Lecture, Med. Gaz., Dec. 1S45. 19* K 222 DISEASES OF THE BONES. obscurely granular substance, arranged in concentric laminte around longi-tudinal canals (viz. the Haversian canals which contain the nutrient blood-vessels). The laminge are separated by circular r
. The principles and practice of modern surgery . t, thenewly-formed shell contracts, its cavity is abolished, and it graduallyassumes the shape and function of the former bone. Microscopical Appearances of Diseased Bone.—Healthy bone, M^hen athin section is examined under the microscope, is shown to consist of an * Vide Sir B. Brodies Lecture, Med. Gaz., Dec. 1S45. 19* K 222 DISEASES OF THE BONES. obscurely granular substance, arranged in concentric laminte around longi-tudinal canals (viz. the Haversian canals which contain the nutrient blood-vessels). The laminge are separated by circular rows of minute cavitiesor cells, having fine canaliculi running from them, as shown inFig. 32. In diseased bone, the only changes that have been recog-nised are variations of plus and 7mnus; — that is to say, in bone thatis condensed and hardened by inflammation, the Haversian canals aresmall, the laminae well defined, and the cells numerous. In bone, on thecontrary, that is loosened out and rendered spongy, and that has its visible Fis;.
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Keywords: ., bookcentury1800, booksubjectgeneralsurgery, booksubjectsurgery
