ingestion
Mouth, esophagus, stomach
Salivary glands.
The digestive enzyme-amylase is secreted in two regions of the digestive tract.i.e.(1) salivary amylase by salivary glands in the buccal cavity.(2) pancreatic amylase by pancreas in the duodenum.
The action of chewing produces extra saliva - which contains digestive enzymes.
They are called digestive enzymes. There are many that are used in the process, beginning in the mouth with enzymes that begin the break down of starches.
The first digestive juices are those produced in saliva that is excreted into the mouth.
Interferons are normally injected. They are not taken by mouth as the strong digestive enzymes of the stomach will degrade them
The esophagus is responsible for transporting food and liquids from the mouth to the stomach through a series of muscular contractions called peristalsis. This process ensures that food is moved efficiently and safely from the mouth to the stomach for digestion.
Most of the digestive process occurs in the duodenum and jejunum of the small intestine. This is where food mixes with digestive enzymes from the pancreas and bile to break down nutrients into forms that can be absorbed by the body.
because of the digestive system
The mouth is part of the digestive system. It is where the process of digestion begins, as food is broken down into smaller pieces by chewing and mixed with saliva to begin the process of enzymatic breakdown.
Mechanical and chemical digestion both occur in the mouth (physically chewing and when saliva breaks down food into smaller bits).