The skin's base layer is the subcutis, which includes a seam of fat laid down as a fuel reserve in case of food shortage.

皮肤最里层的部分叫皮下组织，包含狭长的脂肪层——作为缺血时的储备。

Objective: to observe the hair follicle regeneration after implantation of hair follicle cells into the subcutis of nude mice.

目的：观察毛囊细胞移植诱导裸鼠毛发再生和毛囊重建情况。