Anatomy of the Stomach

How many layers of smooth muscles does the stomach have?

• 1

• 2

• 3

• 4

Which cell produces pepsinogen?

• chief cells

• parietal cells

• mucous cells

• enteroendocrine cells

Which of the following is not a way the stomach protects itself?

• Damaged epithelial cells are quickly replaced

• A thick coat of bicarbonate-rich mucus on the stomach wall

• Epithelial cells joined by desmosomes

• Pepsinogen is not active until HCl is present

What is produced in the stomach?

• bolus

• chyme

Which enzyme digest proteins in the stomach?

• amylase

• pepsin

• gastric lipase

• tyrpsin

What is not present in the gastric juice?

• pepsinogen

• water

• HCl

• antibodies

Which cranial nerve innervates the stomach?

• glossopharyngeal

• hypoglossal

• trigeminal

• vagus

Which hormone decreases stomach emptying?

• lipase

• secretin

• CCK

• gastrin

Which hormone relaxes the pyloric sphincter?

• lipase

• CCK

• gastrin

• secretin

Which of the following is not absorbed in the stomach?

• water

• ions

• fatty acids

• amino acids