English Dictionary

quadrate bone

名詞

(anatomy) A bone between the base of the lower jaw and the skull in most vertebrates other than mammals. In reptiles and birds it articulates the lower jaw with the skull; in mammals it is represented by the incus.

日本語の意味

（解剖学）四角骨。大部分の脊椎動物（哺乳類以外）に認められ、下顎の基底部と頭蓋骨の間に位置する骨です。爬虫類や鳥類では、この骨が下顎と頭蓋骨を連結し、哺乳類ではその役割が中耳の一部（槌骨に相当する）によって担われます。

In many reptiles, the quadrate bone plays a crucial role in articulating the lower jaw with the skull during feeding.

多くの爬虫類では、方形骨（下顎の基部と頭蓋骨の間の骨）が摂食時に下顎を頭蓋骨に連結し、顎の関節運動に重要な役割を果たす。

意味（1）

(anatomy) A bone between the base of the lower jaw and the skull in most vertebrates other than mammals. In reptiles and birds it articulates the lower jaw with the skull; in mammals it is represented by the incus.

quadrate bones （ plural ）