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<div>{{出典の明記|date=2017-01-22}}<br />
'''クチクラ'''（ラテン語：{{lang|de|Cuticula}}）は、[[表皮]]を構成する[[細胞]]がその外側に分泌することで生じる、丈夫な[[膜]]である。さまざまな[[生物]]において、体表を保護する役割を果たしている。人間を含む[[哺乳類]]の[[毛 (動物)|毛]]の表面にも存在する。英語で'''キューティクル'''、日本語で'''角皮'''ともいう。<br />
<br />
[[昆虫]]（特に[[甲虫]]）をはじめとする[[節足動物]]の場合、クチクラは[[外骨格]]を構成するうえ、[[軟体動物]]の[[貝殻|殻]]や[[卵]]の表面を覆う[[生体物質]]である。[[甲殻類]]では[[キチン]]質という[[多糖類]]が主成分で[[蝋]]なども含有されている。<br />
<br />
[[植物]]においては、表皮の外側を覆う透明な膜で、蝋を主成分とする。特に乾燥地や[[海岸]]の植物の[[葉]]ではよく発達する。また、いわゆる[[照葉樹林]]というのは、それを構成する樹木の葉でクチクラ層が発達し、表面が照って見えることに由来する。<br />
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== 関連項目 ==<br />
*[[毛]]<br />
*[[頭髪]]<br />
<br />
<!-- <br />
== 参考文献 ==<br />
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== 外部リンク ==<br />
--><br />
{{biosci-stub}}<br />
{{DEFAULTSORT:くちくら}}<br />
[[Category:組織 (生物)]]<br />
[[Category:昆虫学]]<br />
[[Category:髪]]</div>2404:7A86:7A60:5600:C9E7:9609:4954:4B13 Warning: Cannot modify header information - headers already sent by (output started at /home/users/1/sub.jp-asate/web/wiki/extensions/HeadScript/HeadScript.php:3) in /home/users/1/sub.jp-asate/web/wiki/includes/WebResponse.php on line 46