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Ex. 9. Read, translate and memorize the word combinations:
The digestive system, the alimentary tract, the gut, a muscular tube called the esophagus, to break down food into components, to use for energy and for building and repairing cells and tissues, the partially digested food, to produce enzymes and substances, to have no known function, Indigestible remains of food, to be expelled through the anus, to break down the chemical components of food into tiny nutrients, to generate energy for the body, to build and replace constantly dying cells and tissues, to grind the food into small particles, to detect "good" and "bad" flavors in food, to be chewed and mixed with saliva, to become a soft mass, to travel down the esophagus easily, to be a mass of muscles and tissues, to transport food into the gut system for final processing and distribution, to closes the top of the breathing pipes, to enter breathing pipes accidentally, to go down the "wrong way", to be coughed up, to mixe with chemicals, to be absorbed into the blood and lymph systems, to store for future or emergency use, to pass each day in the morning in the toilet, to be thrown out from the body in the form of stools, to get rid of the solid waste.
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The digestive system (the alimentary tract) consists of organs breaking down food into components that the body uses for energy and as building and repairing materials. | | | Text D. |