GENERAL HISTOLOGY

Detailed explanation-1: -The radula (US: /ˈrædʒʊlə/; plural radulae or radulas) is an anatomical structure used by mollusks for feeding, sometimes compared to a tongue. It is a minutely toothed, chitinous ribbon, which is typically used for scraping or cutting food before the food enters the esophagus.

Detailed explanation-2: -The radula is the organ for mechanical food processing and an important autapomorphy of Mollusca. Its chitinous membrane, embedding small radular teeth, is moved by the set of muscles resulting in an interaction with the ingesta, tearing it and collecting loosened particles.

Detailed explanation-3: -Organisms belonging to phylum Mollusca have a rasping organ called radula for feeding.

Detailed explanation-4: -Radula: a special structure used by molluscs to scrape food off rocks; the radula has rows of tiny teeth.