剧情介绍:
毛【máo】囊【náng】和【hé】毛【máo】根【gēn】的【de】最【zuì】底端【duān】融【róng】合【hé】成【chéng】的【de】毛【máo】球【qiú】可【kě】以【yǐ】看【kàn】作【zuò】毛发【fā】的【de】加【jiā】工【gōng】厂【chǎng】。这【zhè】里【lǐ】的【de】干【gàn】细【xì】胞不断【duàn】产【chǎn】生新的【de】上【shàng】皮【pí】细【xì】胞并【bìng】往【wǎng】外【wài】推【tuī】,而黑【hēi】素【sù】细【xì】胞【bāo】则【zé】负【fù】责产【chǎn】生【shēng】色【sè】素【sù】往上【shàng】皮【pí】细【xì】胞【bāo】里【lǐ】塞。所【suǒ】以毛【máo】发【fā】的生【shēng】长【zhǎng】其【qí】实【shí】就【jiù】是【shì】上【shàng】了【le】色的【de】上【shàng】皮【pí】细【xì】胞长【zhǎng】江【jiāng】后【hòu】浪【làng】推前【qián】浪【làng】,上【shàng】皮【pí】细【xì】胞【bāo】叠【dié】细【xì】胞。