Title: Tongue (ventral side)
Stain hematoxylin-eosin, human. Non-keratinized squamous epithelium, followed by a small lamina propria and
the intrinsic striated lingual muscles.
Title: Papillae filiformes (1) of the tongue (dorsal side)
Stain Heidenhain-light bordeaux, human. Threadlike keratinized extensions of the stratified epithelium. Primary connective tissue papillae with 2 to 3 secondary papillae. The skeletal muscle fibers are arranged in three directions.
Title: Filiform papillae (2) of the tongue (dorsal side)
Stain Azan, human. Oblique cross-section through the top of the filiform papillae.
At the top of the picture keratinized extensions. Primary connective tissue papillae (blue) divide in several small secondary ones.
Keywords/Mesh: oral cavity, mouth, tongue, filiform papilla, lingual muscle, histology, POJA collection