Question 1

Which of the following best describes the function of the lower esophageal sphincter?

Accepted Answer

It prevents the reflux of stomach contents into the esophagus.

Question 2

A patient presents with yellowing of the sclera (scleral icterus). Which condition is most likely responsible for this symptom?

Accepted Answer

Jaundice

Question 3

Which enzyme is responsible for breaking down carbohydrates in both the oral cavity and the small intestine?

Accepted Answer

Amylase

Question 4

A patient with a history of alcoholism presents with a liver that is enlarged, nodular, and has decreased function. What is the most likely diagnosis?

Accepted Answer

Cirrhosis

Question 5

Which anatomical structure is responsible for preventing food from entering the trachea during swallowing?

Accepted Answer

Epiglottis

Question 6

A patient is diagnosed with intussusception. Which of the following best describes this condition?

Accepted Answer

The intestine folds back on itself, like a telescope.

Question 7

Which of the following is the correct order of the segments of the small intestine from proximal to distal?

Accepted Answer

Duodenum, jejunum, ileum

Question 8

A patient undergoes an upper gastrointestinal series. Which of the following best describes this procedure?

Accepted Answer

Barium contrast is swallowed to outline the stomach and intestines on x-ray.

Question 9

Which of the following terms is built from the combining forms for 'bile' and 'duct'?

Accepted Answer

Cholangi/o-

Question 10

A patient with Crohn disease is most likely to have which of the following findings on examination of the intestine?

Accepted Answer

Thickened wall with ulcers and partial obstruction

Question 11

Which of the following best describes the function of villi in the small intestine?

Accepted Answer

They increase surface area to maximize absorption of nutrients and water.

Question 12

A patient is found to have a volvulus. What is the most immediate risk associated with this condition?

Accepted Answer

Obstruction and loss of blood supply to the intestine

Question 13

Which hormone is released by the duodenum and stimulates the gallbladder to contract and release bile?

Accepted Answer

Cholecystokinin

Question 14

A patient with a nasogastric (NG) tube can receive which of the following?

Accepted Answer

Liquid feedings or liquid drugs

Question 15

Which of the following best describes the process of peristalsis?

Accepted Answer

The coordinated muscular contractions that move food through the GI tract

Question 16

A patient with a history of gallstones presents with severe right upper quadrant pain after a fatty meal. Which structure is most likely obstructed?

Accepted Answer

Common bile duct

Question 17

Which of the following is a correct definition for the term 'gastrology'?

Accepted Answer

Study of the stomach

Question 18

A patient is scheduled for a colonoscopy. What is the primary purpose of this procedure?

Accepted Answer

To examine the rectum and colon for abnormalities

Question 19

Which of the following best describes the function of the omentum?

Accepted Answer

It is a fatty membrane that protects the abdominal organs.

Question 20

A patient with peritonitis is most likely to have which of the following complications?

Accepted Answer

Inflammation of the abdominal cavity lining due to infection or perforation

Medical Terminology: The Gastrointestinal System

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