…The epidermis of the protochordate amphioxus (Figure 1) consists of a single layer of columnar epithelium, with a layer of collagen fibers underneath. The skin of vertebrates is made up of two layers: the epidermis (stratified squamous epithelium) and the dermis (tough connective tissue with dense collagen fibers). The dermis has numerous projections called papillae that extend toward the epidermis, and the epidermis and dermis are tightly attached together by a wide, highly uneven adhesive surface that never separates. … *Some of the terminology that mentions "dermis" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…原索動物のナメクジウオの表皮は(図1),1層の円柱上皮からなり,その下に膠原(こうげん)繊維の層が存在する。 脊椎動物の皮膚は,重層扁平上皮からなる表皮epidermisと,膠原繊維が密に集合した強靱結合組織からなる真皮dermisの2枚1組でつくられている。真皮は乳頭papillaと呼ばれる無数の突起を表皮に向かって伸ばしており,凹凸の激しい広い接着面により,表皮と真皮は決して離れることなくぴったりくっついている。… ※「dermis」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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