. Quain's elements of anatomy . h a few osteoblasts applied to the bone. In the end, some of tlie enlarged cavities and open structure remain toform the cancellated tissue, but much of this structure is afterwards removedby absorption, to give place to the medullary canal or the shaft. In many ofthese cavities the walls of the coalesced primary areolas may long be distinguished,like little arches, forming by their union a sort of festooned outline, uponwhich the new bony laminae are deposited (see figs. 105, & 109). The j^rhnari/ osseuns matter forming the original thin walls of the areolaj, a
. Quain's elements of anatomy . h a few osteoblasts applied to the bone. In the end, some of tlie enlarged cavities and open structure remain toform the cancellated tissue, but much of this structure is afterwards removedby absorption, to give place to the medullary canal or the shaft. In many ofthese cavities the walls of the coalesced primary areolas may long be distinguished,like little arches, forming by their union a sort of festooned outline, uponwhich the new bony laminae are deposited (see figs. 105, & 109). The j^rhnari/ osseuns matter forming the original thin walls of the areolaj, andproduced by calcification of the cartilaginous matrix, is decidedly granular, andhas a dark appearance ; the subsequent or secondary deposit on the other hand isquite transparent, and of a uniform, homogeneous aspect. This secondary depositbegins to cover the granular bone a very short distance below the surface ofossification (see fig. 108), and, as already stated, increases in thickness furtherdown. Fig. 107. Fiff.
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Keywords: ., boo, bookcentury1800, booksubjectanatomy, booksubjecthumananatomy
