Activity The following paragraph describes the anatomical features and functions of the digestive system. Some key words are missing. Choose from the
following list of words and complete the paragraph:
alr, anus, bile, carbohydrates, cardiac, cecum, chyle, chyme, colon, ducts, esophagus, fats, fecal, gall, gastric, hepatic, large intestine, liver,
molecules, mouth, nutrients, pancreas, pancreatic, pharynx, proteins, pyloric, rectum, saliva, small intest/ne, trachea, undigested, urinary
Digestion begins in the which breaks down food through the mechanical action of the teeth. In the mouth, food material mixes with
which has enzymes that start breaking down food, especially The chewed food then enters the pharynx and moves to the stomach through
the The Juices in the stomach, which contain a high volume of acid, further break down the food. The food at this stage is It
enters the small intestine through the sphincter. In the intestine, the material mixes with juices secreted by the pancreas. It also
mixes with produced by the liver and stored in the bladder. The material at this stage is The broken-down food contains
that the small intestine will absorb in the process of digestion. The small intestine opens up into the of the large intestine, where
undigested food remains until it passes out of the body. Through the ascending, transverse, and descending the body reabsorbs water,
and the undigested food becomes a solid mass called matter. It remains in the until its elimination through the
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