Explain the process of digestion in the buccal cavity with a note on the arrangement of teeth.

(N/A) The digestion of carbohydrates begins in the mouth,where food mixes with saliva.
This makes the food soft and moist. Food components are broken down into smaller pieces due to the process of chewing (mastication).
Saliva contains the enzyme salivary amylase. This enzyme converts starch into maltose,isomaltose,and $\alpha$-dextrin. Approximately $30\%$ of the starch in food is hydrolyzed in the mouth.
$\text{Starch} \xrightarrow{\text{Salivary Amylase}} \text{Maltose} + \text{Isomaltose} + \alpha\text{-Dextrin}$
Saliva does not contain any enzymes for the digestion of proteins or fats,so they are not digested in the mouth.
In the mouth,teeth are embedded in the sockets of the jawbone. This type of dental arrangement is called thecodont.
There are four types of teeth arranged in the order of $2, 1, 2, 3$ in each half of each jaw. These are incisors,canines,premolars,and molars,respectively. They form the dental formula: $\frac{2123}{2123}$.