. The comparative anatomy of the domesticated animals. Horses; Veterinary anatomy. GENERAL PRINCIPLES APPLICABLE TO THE STUDY OF ALL THE BONES. 17 axis of the bone ; they communicate frequently by transverse branches. While the most superficial open on the surface of the bone, beneath the periosteimi, and the deepest into the medullary canal, a certain number terminate in the areolae of the spongy substance at the ends of the bones. ^'^" ^^' The walls of these canals are con- stituted by several concentric lamella) of fundamental substance, in which are lodged the essential elements of th
. The comparative anatomy of the domesticated animals. Horses; Veterinary anatomy. GENERAL PRINCIPLES APPLICABLE TO THE STUDY OF ALL THE BONES. 17 axis of the bone ; they communicate frequently by transverse branches. While the most superficial open on the surface of the bone, beneath the periosteimi, and the deepest into the medullary canal, a certain number terminate in the areolae of the spongy substance at the ends of the bones. ^'^" ^^' The walls of these canals are con- stituted by several concentric lamella) of fundamental substance, in which are lodged the essential elements of the bony tissue. Each canal, with its vessels, its system of concentric lamellae, its osteoplasts, and its osseous canaliculi, forms a whole (the Haversian system) which represents the complete bone in miniature. All the Haversian systems preserve a certain independence ; the canaliculi of each, after reaching the mi^^te structure of bone, as shown in a thin • 1 1 11 n , 1 i section cut transversely to the direction of the periphery, are nearly all reflected to- Haversian canals. wards the centre (the recurrent canaliculi l, A Haversian canal surrounded by its concentric lamellae ; the lacunae are seen between the lamellae, but the radiating tubuli are omitted; 2, ibid., with its concentric laminae, lacunae, and radiating tubuli; 3, the area of one of the canals; 4, 4, intervening lamellae, and between them, at the upper part, several very long lacunae with their Fig. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Chauveau, A. (Auguste), 1827-1917; Arloing, S. (Saturnin), 1846-1911; Fleming, George, 1833-1901. New York : Appleton
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