外皮系統(Integumentary system)

1皮膚Skin
A表皮Epidermis
B真皮Dermis
C下皮Hypodermis/subcutaneous adipose layer
2附件Adnexa
A頭髮Hair
B指甲Nail
C腺Glands
a皮脂腺Sebaceous gland
b汗腺Sweat glands