Final Answer:
The type of lingual papillae responsible for giving cats' tongues their rough, sandpaper-like feel is the filiform papillae.
Step-by-step explanation:
Filiform papillae are the most numerous of the four types of lingual papillae found on the surface of the tongue. These papillae are slender, cone-shaped structures that lack taste buds. Instead, they are covered with numerous tiny projections called keratinized epithelial cells. It is this keratinized outer layer that gives the filiform papillae their abrasive texture, contributing to the sandpaper-like feel of a cat's tongue. This specialized structure serves various functions for cats, including aiding in grooming and scraping meat off bones when they consume prey.
The rough texture of a cat's tongue is a result of evolution and adaptation to their carnivorous diet and grooming needs. The filiform papillae not only assist in removing dirt, loose fur, and parasites from the cat's coat but also play a crucial role in rasping meat from the bones of their prey. The abrasive nature of the tongue helps in maintaining oral and coat hygiene. Additionally, the mechanical action of the filiform papillae provides a form of dental care for cats by reducing plaque and keeping their teeth clean. In summary, the unique structure of filiform papillae is a remarkable example of how anatomical adaptations in animals serve specific functions related to their lifestyle and dietary habits.