ニホンザル, タイワンザル, アカゲザルとヒトの手骨格の比較および2〜3の筋について

概要

論文の詳細を見る
To compare the structure of forepaw of monkeys to that of human, the composition of skeleton and some muscles of a total of 27 Japanese monkeys(Macaca fuscata), 6 Taiwan macaques(Macaca cyclopis)and 6 rhesus monkeys(Macaca mulatta)were surveyed with X-ray, Arizarin red skeletal staining, and gross anatomy. All macaques had a central carpus which is not independent in human carpal bones. The order of length of metacarpal bones of macaques was III>II>IV>V while that of human was II>III>IV>V. The order of length phalanges was III>IV>II>V in both macaques and human. There were four types of arrangement of sesamoidal bones. Japanese and rhesus monkeys had three types and Taiwan macaques had all four patterns. In general, muscles of forepaw of macaques were similar to those of human hand but M.extensor digiti IV were more prominent than in human. M.contrahentes digitorum manus was specific to monkeys. Those features of skeletal and muscular arrangement suggested that the main function of forepaw of macaques was more specific to grip, branches of tree, etc., rather than to walk on the ground.