Question 1

Which of the following best describes the primary function of the liver in the digestive system?

Accepted Answer

Producing bile to aid in fat digestion

Question 2

A patient has a blockage at the hepatopancreatic duct (Ampulla of Vater). Which of the following digestive processes would be most directly affected?

Accepted Answer

Release of bile and pancreatic enzymes into the duodenum

Question 3

Which layer of the digestive tract is primarily responsible for peristalsis and segmentation?

Accepted Answer

Muscularis

Question 4

A person with a damaged submucosa in the small intestine would most likely have issues with which of the following?

Accepted Answer

Transporting absorbed nutrients via blood vessels and lymphatics

Question 5

Which of the following equations best represents the chemical digestion of starch by salivary amylase?

Accepted Answer

$$C_6H_{10}O_5$\ (starch) + H_2O \xrightarrow{amylase} C$$_{12}$$H_{22}O$$_{11}\ (maltose)$

Question 6

Which of the following is NOT a function of the large intestine?

Accepted Answer

Production of bile

Question 7

A patient with cystic fibrosis often has a blocked pancreatic duct. Which digestive process is most likely impaired?

Accepted Answer

Chemical digestion of fats, proteins, and carbohydrates in the small intestine

Question 8

Which of the following best explains the role of Peyer's patches in the small intestine?

Accepted Answer

They prevent bacteria from entering the blood stream

Question 9

During swallowing, which structure prevents food from entering the nasal cavity?

Accepted Answer

Soft palate

Question 10

A patient presents with jaundice and poor fat digestion. Which organ is most likely malfunctioning?

Accepted Answer

Liver

Question 11

Which of the following is the correct order of the four layers of the digestive tract from innermost to outermost?

Accepted Answer

Mucosa, Submucosa, Muscularis, Serosa

Question 12

Which of the following best describes the function of the pyloric sphincter?

Accepted Answer

Regulates the passage of chyme from the stomach to the duodenum

Question 13

A patient has difficulty moving food from the mouth to the esophagus. Which muscle is most likely affected?

Accepted Answer

Tongue (lingual muscle)

Question 14

Which of the following is a correct statement about the gallbladder?

Accepted Answer

It stores and concentrates bile produced by the liver

Question 15

Which of the following best explains why the small intestine has villi and microvilli?

Accepted Answer

To increase the surface area for nutrient absorption

Question 16

A patient with a peptic ulcer is most likely to experience damage in which part of the digestive tract?

Accepted Answer

Stomach or duodenum

Question 17

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

Accepted Answer

It is a peritoneal membrane that covers and protects abdominal organs

Question 18

Which of the following is the correct sequence of the sections of the large intestine?

Accepted Answer

Cecum, Colon, Rectum, Anal canal

Question 19

Which of the following best explains the difference between mechanical and chemical digestion?

Accepted Answer

Mechanical digestion breaks food into smaller pieces; chemical digestion breaks molecules into absorbable units

Question 20

A patient with viral hepatitis is most likely to have impaired function in which of the following processes?

Accepted Answer

Production of bile and detoxification of blood

The Digestive System: Structure, Function, and Clinical Correlates

Study Guide - Practice Questions