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单词 Hyponychial
释义

Hyponychial

中文百科

指甲 Nail (anatomy)

(重定向自Hyponychial)
人类的手指甲
指甲刀
Uña del dedo pulgar.

指(趾)甲,亦称指(趾)盖指(趾)甲盖指(趾)头盖等,分为手指甲(简称手甲)或脚趾甲(简称脚甲),是哺乳类动物长于肢体指前端的由皮肤角质层硬化的一层硬物,指(趾)甲的作用是保护末节指腹免受损伤,维护其稳定性,增强手指触觉的敏感性。协助手抓、挟、捏、挤等。甲床血供丰富,有调节末梢血供、体温的作用。其次,指甲又是手部美容的重点,漂亮的指甲增添女性的魅力。

英语百科

Nail (anatomy) 指甲

(重定向自Hyponychial)
Human nailsFingernailsToenails
Human toes and nails

A nail is a horn-like envelope covering the tips of the fingers and toes in humans, most non-human primates, and a few other mammals. Nails are similar to claws in other animals. Fingernails and toenails are made of a tough protective protein called keratin. This protein is also found in the hooves and horns of different animals. It is made up of dead skin cells.

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更新时间:2025/6/18 13:41:35