The mouth / the digestive tract / bile / esophagus / the salivary glands / the stomach many microbes / the rectum

The digestive system consists of (1)
and digestive glands. The digestive tract
is some 8-10m long and is divided into the following parts: oral cavity. (2).
stomach, small intestine and large intestine.
The digestive process begins in (3)
The food is chewed by the teeth in the oral
cavity. 4)
secrete saliva which helps break down food's carbohydrates.
After that the food enters the esophagus. Peristaltic movements in the walls of the esophagus
push the food into (5)
Food in the stomach is partly digested and converted into a semi liquid (noJYHTIJKINI) state.
After being in the stomach, food enters the small intestine. There (6)
pancreatic
enzymes, and other digestive enzymes help in the breakdown of food.
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olgabelova51487    3   04.06.2020 13:31    157