Question 1

Which structure is responsible for preventing food from entering the nasal cavity during swallowing?

Accepted Answer

Soft palate

Question 2

A patient presents with difficulty swallowing and food entering the trachea. Which structure is most likely malfunctioning?

Accepted Answer

Epiglottis

Question 3

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

Accepted Answer

Controls the release of chyme from the stomach into the duodenum

Question 4

During a surgical procedure, a surgeon must avoid damaging the structure that connects the tongue to the floor of the mouth. What is this structure called?

Accepted Answer

Lingual frenulum

Question 5

Which gland is located anterior to the ear and is responsible for secreting saliva rich in amylase?

Accepted Answer

Parotid gland

Question 6

A blockage in which duct would most directly prevent bile from reaching the duodenum?

Accepted Answer

Common bile duct

Question 7

If the ileocecal valve fails to function properly, which of the following is most likely to occur?

Accepted Answer

Reflux of colonic contents into the small intestine

Question 8

Which of the following correctly matches the digestive structure with its primary function?

Accepted Answer

Small intestine – absorption of nutrients

Question 9

A patient has a tumor blocking the pancreatic duct. Which of the following consequences is most likely?

Accepted Answer

Impaired carbohydrate and fat digestion in the small intestine

Question 10

Which of the following structures is NOT part of the pharynx?

Accepted Answer

Epiglottis

Question 11

A gallstone lodged in the common bile duct would most likely affect the digestion of which macromolecule?

Accepted Answer

Lipids

Question 12

Which of the following best describes the role of the hepatic portal vein?

Accepted Answer

Transports nutrient-rich blood from the digestive tract to the liver

Question 13

If the lower esophageal sphincter fails to close properly, which condition is most likely to result?

Accepted Answer

Gastroesophageal reflux disease (GERD)

Question 14

Which of the following is the correct order of structures that food passes through after leaving the stomach?

Accepted Answer

Duodenum → Jejunum → Ileum

Question 15

A patient has their gallbladder removed. Which of the following changes in digestion is most likely?

Accepted Answer

Bile is released continuously into the small intestine

Question 16

Which of the following structures is responsible for the majority of water absorption in the digestive tract?

Accepted Answer

Large intestine

Question 17

A patient with a damaged submandibular gland would most likely experience which of the following symptoms?

Accepted Answer

Reduced saliva production

Question 18

Which of the following best explains why the pancreas is considered both an endocrine and exocrine gland?

Accepted Answer

It secretes digestive enzymes into the duodenum and hormones into the blood

Question 19

A patient is diagnosed with appendicitis. In which region of the digestive tract is the appendix located?

Accepted Answer

Cecum

Question 20

If the mucosa of the small intestine is damaged, which of the following is most likely to be impaired?

Accepted Answer

Absorption of nutrients

Digestive System Identification: Structures and Functions

Study Guide - Practice Questions

Study Guide - Flashcards