Digestive System Quiz

Which layer of the alimentary canal contains blood vessels and lymphatic vessels?

• Mucosa

• Submucosa

• Muscularis externa

• Serosa

What is the function of the serosa layer in the alimentary canal?

• To secrete enzymes

• To protect the alimentary canal from abrasion

• To absorb nutrients

• To produce hormones

What substance do chief cells in the stomach release?

• Hydrochloric acid

• Pepsinogen

• Amylase

• Bile

What is the function of the pyloric sphincter?

• To regulate movement of material from the stomach to the small intestine

• To release bile into the stomach

• To absorb nutrients in the stomach

• To produce digestive enzymes

What is the main function of the stomach?

• To absorb nutrients

• To break down food

• To produce bile

• To filter blood

What is the role of bile in digestion?

• Breaks down proteins

• Emulsifies fats

• Absorbs nutrients

• Produces enzymes

What is the role of the pancreas in digestion?

• Produces bile

• Produces digestive enzymes

• Absorbs nutrients

• Stores vitamins

What is the function of the microvilli in the small intestine?

• Produce enzymes

• Increase surface area for absorption

• Secrete hormones

• Store nutrients

What is the shape of the liver lobules?

• Hexagonal

• Circular

• Triangular

• Square

Which enzyme is responsible for breaking down lipids?

• Amylase

• Pepsin

• Lipase

• Nuclease