All the chemical and mechanical phases of digestion from the mouth through the small intestine are directed toward changing food into forms that can pass through the epithelial cells lining the mucosa into the underlying blood and lymphatic vessels. a. Trueb. False
True.
Explanation:
There are two types of digestion such as chemical digestion and mechanical digestion. In chemical digestion, harmones such as saliva is added to the food for the breakdown of food substances in to simpler substances while mechanical digestion is the breaking of food particles into smaller pieces. This mechanical digestion occurs in mouth through teeth and in stomach. These smaller food particles can pass through the epithelial cells of mucosa into the underlying blood and lymphatic vessels and send it to every cell of the body.