. Comparative anatomy. Anatomy, Comparative. ^d^-^ IW^ DEGENERATION OSTEOCLASTS. OSTEOBLAST BONE Fig. 159.—Endochondral bone formation at the end of a long bone. Destruction of cartilage is followed by the secretion of lime in the form of thin lamellae. Osteoblasts then lay down bone upon these lamellae. In this way cancellous bone replaces cartilage. (Redrawn after Dahlgren and Kepner.) a diplospondylous condition reminiscent of elasmobranchs. Parapophyses are reduced to shallow pits for articulating the heads of the ribs. The human spine differs little from that of other mammals, except that
. Comparative anatomy. Anatomy, Comparative. ^d^-^ IW^ DEGENERATION OSTEOCLASTS. OSTEOBLAST BONE Fig. 159.—Endochondral bone formation at the end of a long bone. Destruction of cartilage is followed by the secretion of lime in the form of thin lamellae. Osteoblasts then lay down bone upon these lamellae. In this way cancellous bone replaces cartilage. (Redrawn after Dahlgren and Kepner.) a diplospondylous condition reminiscent of elasmobranchs. Parapophyses are reduced to shallow pits for articulating the heads of the ribs. The human spine differs little from that of other mammals, except that the tail is reduced to a coccyx with a few variable muscles attached. Man's only distinctive feature is the sigmoidal curve, which bends his spine in two directions, instead of one only as in other creatures. In. 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 Neal, Herbert V. (Herbert Vincent), 1869-1940; Rand, Herbert W. (Herbert Wilbur), 1872-1960. Philadelphia : P. Blakiston's Son
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