Final answer:
Filiform papillae do not contain taste buds; they have touch receptors that contribute to the mechanical functions of the tongue, such as moving food and providing texture.
Step-by-step explanation:
The type of lingual papillae that do not contain taste buds are the filiform papillae.
Filiform papillae are long and thin, creating an abrasive surface on the tongue primarily responsible for mechanical functions such as moving food around in the mouth, similar to a cat's rough tongue used for grooming.
They are long and thin, serving the function of touch receptors that help the tongue move food around in the mouth. In contrast, fungiform, foliate, and vallate papillae all contain taste buds and are involved in gustatory.
Unlike fungiform, foliate, and circumvallate papillae, which all contain taste buds and are sensitive to the chemicals in foods, filiform papillae contain touch receptors instead of gustatory receptors.
Taste buds are specialized structures that contain gustatory receptor cells for tasting, whereas filiform papillae contribute to the texture of the tongue's surface and are important for physical manipulation of food within the oral cavity.