Digestive System

Which of the following is NOT one of the four major tasks of the human digestive system?

• Ingestion

• Respiration

• Digestion

• Elimination

What is the role of the epiglottis during swallowing?

• To produce saliva

• To block the windpipe

• To grind food

• To secrete enzymes

The shape of villi in the small intestine allows for an increased amount of

La forma de las vellosidades del intestino delgado permite una mayor cantidad de

• Time

• Weight

• Nutrients

• Surface Area

What substance is formed in the stomach after food is mixed with gastric juices?

• Bile

• Chyme

• Bolus

• Villi

Which part of the small intestine is responsible for most nutrient absorption?

• Colon

• Duodenum

• Ileum

• Jejunum