The near total mineral-free and elastin-free cartilage content of a three-month-old mongrel dog was 0.73% of the dry body weight. Extraarticular (costal, tracheobronchial, thyroid, cricoid, nasal septum) cartilage constituted 0.44%; articular, 0.06; intervertebral disc, 0.10; elastic, 0.12 and meniscal fibrocartilage, 0.01%. Articular tissue accounted for only 7.25% of the total cartilage uronic acid. This is the first estimate of the amount and distribution of cartilage in a vertebrate species.
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Atencia et al. (1989) studied this question.
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