Assertion: dermis's structure | /r/HasProperty | matoltsy
Facets:
Source sentences:
text: In contrast, the hair and nails do not contain keratohyaline granules, and the tonofibril filaments traversing the cell cytoplasm will harden because of the incorporation of disulfide bonds, producing "hard" keratin in those structures (Matoltsy, 1976; Schwarz, 1979).