A hair shaft, sebaceous glands, concentric layers of inner and outer root sheaths surrounded by a dermal sheath and hair bulb with dermal papilla, hair matrix and cortex were all present (Fig.

The newly discovered mechanism centers on a component of the hair called the dermal sheath. This surrounds the outside of the hair follicles and has long been known to play a key role in ...

Possessing multiple receptors for a vast number of mediators, the dermal papilla ... into the numerous structures of the fiber (inner root sheath, cuticle, cortex, medulla).