…The anthropological value of head shape is very important. To compare the head shapes of various races, the cephalic index of the living is used. It is (head width ÷ head length) × 100, and is therefore also called the head length index. … From [Skull]…The shape of the skull has long been the subject of anthropological study, and the means of craniometry have been used to quantitatively express its size and shape. For this purpose, various measuring instruments have been devised and numerous measuring points have been defined. There are a great number of values measured in this way and the indexes calculated from them, but the most important one is the cephalic index of the living. It is the head width (the longest width from side to side) divided by the head length (the longest anterior-posterior diameter) and multiplied by 100. … *Some of the terminology that refers to the "cephalic index of the living" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…頭型の人類学的価値ははなはだ重要である。種々の人種の頭型を比較するために頭示数cephalic index of the livingというものが用いられる。これは(頭幅÷頭長)×100で,したがって〈頭の長幅示数〉とも称せられる。… 【頭骨】より…頭蓋の形は古くから人類学的研究の対象であり,大きさや形を数量的に表現するために頭蓋計測の手段が用いられ,そのために諸種の計測器が考案されるとともに,多数の計測点が規定された。そのようにして計測された数値とそれから計算された示数の種類ははなはだ多いが,とくに重要なものは頭長幅示数cephalic index of the living(頭示数)である。頭幅(いちばん長い左右幅)を頭長(いちばん長い前後径)で割って100を掛けた値である。… ※「cephalic index of the living」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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