Question : How is it that in the gizzard its lining is not damaged whilethe soil containing sand particles is ground up?

Question : How is it that in the gizzard its lining is not damaged whi

1.	Question : How is it that in the gizzard its lining is not damaged whilethe soil containing sand particles is ground up?
Answer» Solution :The gizzard is SURROUNDED by THICK layers of circular MUSCLES. Its internal wall GIVES out six hard chitinous plates, called teeth or proventricular plateswhich masticate the food.