Digestive system

1. What are the two chief functions of the digestive system?

• a) Respiration and Absorption

• b) Digestion and Absorption

• c) Secretion and Excretion

• d) Filtration and Circulation

2. Which accessory organ of the digestive system produces saliva containing the enzyme amylase?

• a) Liver

• b) Pancreas

• c) Salivary Gland

• d) Gallbladder

3. The small finger-like projections in the small intestine that increase the surface area for absorption are called:

• a) Rugae

• b) Microvilli

• c) Villi

• d) Papillae

4. Which enzyme in the stomach begins the digestion of proteins?

• a) Lipase

• b) Trypsin

• c) Pepsin

• d) Amylase

5. What is the role of the ileocecal sphincter in the digestive process?

• a) Regulates the passage of materials from the stomach to the small intestine

• b) Prevents backflow of materials from the small intestine to the large intestine

• c) Secretes digestive enzymes in the small intestine

• d) Stores bile in the gallbladder

6. Which part of the digestive system is responsible for the absorption of most nutrients and water?

• a) Stomach

• b) Large Intestine

• c) Small Intestine

• d) Esophagus

7. Which part of the digestive system is retroperitoneal, meaning it is located behind the peritoneum?

• a) Esophagus

• b) Liver

• c) Stomach

• d) Duodenum

8. The function of the esophagus is to:

• a) Mix and churn food with gastric juice

• b) Absorb nutrients from the chyme

• c) Secrete enzymes for digestion

• d) Transport food from the mouth to the stomach

9. What is the primary purpose of the large intestine?

• a) Digestion of carbohydrates

• b) Absorption of nutrients

• c) Elimination of waste

• d) Production of bile

10. What is the enzyme secreted in the mouth that begins the digestion of carbohydrates?

• a) Pepsin

• b) Lipase

• c) Amylase

• d) Trypsin