Tonofilament vs. Tonofibril
Tonofilamentnoun
(protein) A structural filament of keratin present in the cytoplasm
Tonofibrilnoun
(biology) A structural fibril of tonofilaments found in the cytoplasm of epithelial cells
Tonofibril
Tonofibrils are cytoplasmic protein structures in epithelial tissues that converge at desmosomes and hemidesmosomes. They consist of fine fibrils in epithelial cells that are anchored to the cytoskeleton.
