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: -Inside the giant squid’s sharp beak is a tongue-like organ called the radula (shown in yellow). Covered with rows of tiny teeth, it rams bite size pieces of food down the squid’s throat. The pieces must be small because the giant squid’s esophagus passes through the brain on the way to the stomach.

Detailed explanation-4: -Digestive System The radula may also pulverize food particles by grinding them against the roof of the mouth. A long esophagus leads to the stomach, located in the visceral mass. Some gastropods possess a specialized crop where sand grains further abrade food particles.

Detailed explanation-5: -Similar to the other snails, the radula is an organ present in pila that helps to cut down the food using the teeth of the radula. The radula of pila present in the buccal cavity appears in brownish. The major function of this radula is to break down the food into small particles.