DefinitionThis section has been translated automatically.
Outer hair sheath.
HistologyThis section has been translated automatically.
- Plate epithelial cylinder with external row of basal cells.
- Subdivided into 3 sections:
- Infundibulum (upper part): Epidermal keratinization type, formation of a stratum granulosum.
- Isthmus (middle part): Keratinization without intermediate stratum granulosum; is called tricholemmal keratinization.
- Deep section close to the hair bulb: 1 to 2 layers of light, glycogen-rich basal and suprabasal cells. No keratinization.
Prof. Dr. med. Peter Altmeyer