Nasal septum (English spelling) nasalseptum

Japanese: nasal septum(英語表記)nasalseptum
Nasal septum (English spelling) nasalseptum

…In humans, the frontal lobe, which is part of the cerebrum, has developed and now covers the nasal cavity, the eyeballs have moved from the sides to the front, and the nasal cavity has become embedded in the facial bones, showing a degenerated shape. The nasal septum, which separates the left and right nasal cavities, corresponds to the ligament between the anterior cranial fossa, which contains the frontal lobe, and the palate, which forms the floor of the nasal cavity. The nasal septum is often curved to the left or right, but there is a theory that this is due to distortion during the development of the upper and lower nasal cavities. …

*Some of the terminology that mentions "nasal septum" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…ヒトでは大脳の一部である前頭葉が発達して鼻腔の上におおいかぶさり,眼球も側方から前方に移動して,鼻腔が顔面骨の中に埋めこまれて退化した形態を示す。左右の鼻腔を分ける鼻中隔nasal septumは前頭葉を入れる前頭蓋窩と鼻腔の底をなす口蓋との間の梁受(はりうけ)に相当する。鼻中隔は左右のいずれかに湾曲していることが多いが,これは鼻腔の上と下との発育過程におけるゆがみによるという説がある。…

※「nasal septum」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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