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Section Through a Filiform Papilla
Note the layer of keratin (A) at the tip of this filiform papilla (B). There is non-keratinized stratified squamous epithelium on either side of the tip. The papillae has a core of loose connective tissue, or lamina propria (C). The tongues of animals that feel much rougher (such as the cat) reflects the greater degree of keratinization of the mucosa and papillae on the dorsum of the tongue.
Legend
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A - keratin |
C - core of lamina propria |
