Teeth
Digestion of food begins with the action of the teeth in the
mouth.
The main types of teeth are Incisors, Canine, pre molars,
molars and each one has a specific function.
Each tooth is covered with enamel, a hard substance.
Enamel is composed of calcium salts.
Saliva contains an enzyme called ptyalin or salivary
amylase. Ptyalin converts starch into a sugar called maltose.
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