Horny cell (coenocyte Granular Keratohyaline cell Granules Prickle Desmosomes (spinous) o cell Basal 10-14nm cells a)Hemidesmosome
Keratohyaline Granules
keratinocyte non-keratinocvte keratin + tonofilament desmosome dendritic-shaped
keratinocyte non-keratinocyte keratin + ─ tonofilament + ─ desmosome + ─ dendritic-shaped ─ +
Function of the keratinocytes Continuously producing keratin and forming horny layer to protect against various chemical and physical factors Participating immune response in the SkIn Secreting cytokines and helping to activate T lymphocytes
Function of the keratinocytes Continuously producing keratin and forming horny layer to protect against various chemical and physical factors Participating immune response in the skin Secreting cytokines and helping to activate T lymphocytes
Desmosome Attachment plates between adjacent keratinocytes in basal layer and prickle layer Desmosome transmembrane protein desmoglein,DG desmocollin dc Desmosome cytoplasm plakin desmoplakin, DP lakoglobulin,PG
Desmosome Attachment plates between adjacent keratinocytes in basal layer and prickle layer Desmosome transmembrane protein – desmoglein,DG – desmocollin,DC Desmosome cytoplasm plakin – desmoplakin,DP – plakoglobulin,PG
细跑襄 11 附着抚 张力微丝 细胞接鹪 细胞间赏