Assertion: epidermis's keratinocyte | /r/CapableOf | form cortex
Facets:
Source sentences:
text: Just as the layers of the skin form on the inner layers and get pushed out to the surface as the dead skin on the surface sheds, basal cells in the center of the hair bulb divide to form layers of keratinocytes that form the medulla, cortex, and cuticle of the hair bulb.