$$\text{gastr/o-} = \text{stomach},\ \text{enter/o-} = \text{intestine},\ -\text{logy} = \text{study of}$$

Question 1

Which of the following best describes the function of the pyloric sphincter in the gastrointestinal system?

Accepted Answer

It regulates the passage of chyme from the stomach into the duodenum.

Question 2

A patient presents with yellowing of the sclera (scleral icterus). Which of the following laboratory findings would most likely be elevated?

Accepted Answer

Serum bilirubin

Question 3

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

Accepted Answer

Epiglottis

Question 4

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

Accepted Answer

Thickened wall with ulcers and partial obstruction

Question 5

Which of the following terms is correctly matched with its meaning?

Accepted Answer

cholangi/o- = bile duct

Question 6

A patient is diagnosed with a volvulus. What is the primary physiological consequence of this condition?

Accepted Answer

Twisting of the intestine leading to obstruction and decreased blood flow

Question 7

Which enzyme is responsible for the initial breakdown of carbohydrates in the oral cavity?

Accepted Answer

Amylase

Question 8

A patient with a history of alcoholism presents with a distended abdomen due to fluid accumulation. Which condition is most likely present?

Accepted Answer

Ascites

Question 9

Which of the following best describes the process of emulsification in digestion?

Accepted Answer

Bile breaking down large fat globules into smaller droplets

Question 10

A patient undergoes a barium enema. What is the primary purpose of this diagnostic procedure?

Accepted Answer

To outline the colon and rectum on x-ray for evaluation of abnormalities

Question 11

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 12

A patient with a sliding hernia is at risk for which of the following complications if the hernia becomes strangulated?

Accepted Answer

Necrosis of the trapped intestinal tissue

Question 13

Which hormone stimulates the gallbladder to contract and release bile into the duodenum?

Accepted Answer

Cholecystokinin

Question 14

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

Accepted Answer

They increase the surface area for absorption of nutrients.

Question 15

A patient with a nasogastric (NG) tube is most likely receiving which type of nutrition?

Accepted Answer

Liquid feedings directly into the stomach

Question 16

Which of the following is a correct breakdown of the medical term 'gastroenterology'?

Accepted Answer

$$	ext{gastr/o-} = 	ext{stomach},\ 	ext{enter/o-} = 	ext{intestine},\ -	ext{logy} = 	ext{study of}$$

Question 17

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 18

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 19

Which of the following is the correct sequence for the passage of food through the large intestine?

Accepted Answer

Cecum → Ascending colon → Transverse colon → Descending colon → Sigmoid colon → Rectum → Anus

Question 20

A patient is found to have polyps during a colonoscopy. Why is it important to monitor or remove these polyps?

Accepted Answer

They can become irritated by feces and may become cancerous.

Medical Terminology: Gastroenterology and the Gastrointestinal System

Study Guide - Practice Questions