types of papillae on tongue
The mucosa covering the upper surface of the tongue is thrown into numerous projections called the lingual papillae in the anterior 2/3rd of the tongue. In the posterior 1/3rd, there are no papillae, but there are lots of lymphoid follicles present. The three types of papillae are: fungiform (mushroom like)
Fungiform and Filiform Papillae. The slide above shows a vertical section through the tongue, taken close to its tip. Can you identify the fungiform and filiform papillae, glands, and skeletal muscle. Notice the type of epithelium that covers the superior surface of the tongue (including the papillae). Use the information below, and the diagrams to help you. Filiform papillae are the most common. They are keratinised and in the living, they look white.
1 Innervated by facial nerve (anterior papillae) and glossopharyngeal nerve (posterior papillae).  Circumvallate papillae - there are only about 10 to 14 of these papillae on most people, and they are present at the back of the oral part of the tongue.