part of part of epithelium tonsil pharyngeal epithelium tonsil epithelium tonsil epithelial cell UBERON:0013696 epithelium of tonsil The epithelium that forms the surface of the tonsil dips into the underlying connective tissue in numerous places, forming crypts kown as tonsillar crypts. Stratified squamous epithelium, that may be heavily infiltrated by lymphocytes. Epithelial cells are present in the germinal as well as in the periphery of the nodule. CALOHA:TS-2070