Focus on the Digestive System

Where does mechanical digestion happen in the digestive system?

• mouth

• esophagus

• stomach

• intestine

Which of the following processes pertains to the intake of food to the mouth from different sources?

• digestion

• peristalsis

• assimilation

• ingestion

Which of the following processes pertains to the intake of nutrients into the circulatory system for assimilation?

• ingestion

• absorption

• adsorption

• excretion

Where does the absorption of water of the chyme happen?

• mouth

• liver

• small intestine

• large intestine

Which of the following processes pertains to the removal of undigested materials in the body?

• assimilation

• excretion

• chemical digestion

• respiration

Do you think individuals could survive without a small intestine? Explain.