External Epithelial Root Sheath
The external epithelial root sheath of a hair (or hair follicle) is one of the two layers of the dermal root sheath, which is sometimes called simply the "root sheath" of a hair. The dermal root sheath of a hair consists of two layers of epidermal surrounded by an outer sheath of connective tissue.
The two layers of the dermal root sheath are:
- the external epithelial root sheath, and
- the internal epithelial root sheath
The external epithelial root sheath consists of several layers of cuboid epithelial cells visible when stained with H&E stain, a histology stain.
 |
 |
 |
 |
The external epithelial root sheath is just one of many structures of or associated with hair follicles. See also the links to pages about other accessory structures of the skin.
The topic of the structure of a hair follicle is included in some courses in health sciences, including subjects such as nursing, skin care, hair care, beauty therapy and various holistic therapies.
