Quiz: Introduction to the Digestive System

1. The digestive system includes the digestive tract and its accessory organs, which process food into that can be absorbed and utilized by the cells of the body.
   
   1. packages
   2. enzymes
   3. molecules
   4. fluids
2. The gastrointestinal tract includes the mouth, , esophagus, stomach, small intestine, and large intestine.
   
   1. liver
   2. larynx
   3. pancreas
   4. pharynx
3. begins in the mouth with chewing or mastication and continues with churning and mixing actions in the stomach.
   
   1. Ingestion
   2. Mechanical digestion
   3. Chemical digestion
   4. Absorption
4. The movements that propel the food particles through the digestive tract are called .
   
   1. peristalsis
   2. rhythm
   3. mastication
   4. hydrolysis
5. The wall of the digestive tract has four layers or tunics. They are mucosa, submucosa, muscular layer, and .
   
   1. lumen
   2. lamina propria
   3. serous layer or serosa
   4. muscularis mucosa
6. The pharynx connects the nasal and oral cavities to the . It serves both the respiratory and digestive systems as a channel for air and food.
   
   1. larynx only
   2. esophagus only
   3. larynx and esophagus
   4. uvula
7. Four different types of cells that make up the gastric glands are: mucous cells, parietal cells, chief cells, and .
   
   1. endocrine cells
   2. exocrine cells
   3. goblet cells
   4. hepatocytes
8. Functions of the large intestine include the absorption of water and electrolytes and .
   
   1. detoxification
   2. the absorption of fats
   3. the absorption of the nutrients
   4. the elimination of feces