Question 1

Which of the following correctly describes the primary function of the duodenum in the digestive system?

Accepted Answer

It receives chyme from the stomach and mixes it with bile and pancreatic enzymes for chemical digestion.

Question 2

A patient has a blockage in the common bile duct. Which digestive process is most directly affected?

Accepted Answer

Emulsification of fats in the small intestine

Question 3

Which structure is responsible for filtering blood and forming urine in the nephron?

Accepted Answer

Glomerulus

Question 4

If the pancreas fails to secrete digestive enzymes, which of the following is most likely to occur?

Accepted Answer

Decreased absorption of amino acids and fatty acids

Question 5

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

Accepted Answer

It stores and concentrates bile produced by the liver.

Question 6

A patient presents with jaundice and elevated liver enzymes. Which organ is most likely impaired?

Accepted Answer

Liver

Question 7

Which of the following is the correct sequence of urine flow through the nephron?

Accepted Answer

Glomerulus → Proximal convoluted tubule → Loop of Henle → Distal convoluted tubule → Collecting duct

Question 8

Which structure in the male reproductive system is responsible for sperm maturation and storage?

Accepted Answer

Epididymis

Question 9

A patient has a gastric ulcer. Which organ is directly affected?

Accepted Answer

Stomach

Question 10

Which of the following structures is NOT part of the female reproductive system?

Accepted Answer

Vas deferens

Question 11

Which digestive organ is primarily responsible for the absorption of water and electrolytes?

Accepted Answer

Colon

Question 12

A patient with kidney failure is unable to regulate blood pH. Which nephron structure is most involved in this process?

Accepted Answer

Distal convoluted tubule

Question 13

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

Accepted Answer

It mechanically and chemically digests food using acid and enzymes.

Question 14

Which hormone is primarily responsible for stimulating the release of bile from the gallbladder?

Accepted Answer

Cholecystokinin (CCK)

Question 15

A patient has a blockage in the vas deferens. What is the most likely consequence?

Accepted Answer

Inability of sperm to reach the urethra

Question 16

Which of the following is a function of the liver in digestion?

Accepted Answer

Producing bile to emulsify fats

Question 17

Which part of the nephron is primarily responsible for the reabsorption of water and sodium?

Accepted Answer

Proximal convoluted tubule

Question 18

A patient with a damaged ileum would most likely have difficulty absorbing which nutrient?

Accepted Answer

Vitamin B12

Question 19

Which structure in the female reproductive system is the site of fertilization?

Accepted Answer

Fallopian tube

Question 20

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

Accepted Answer

It secretes insulin into the blood and digestive enzymes into the duodenum.

Lab Exam 2 Study Guide: Digestive, Urinary, and Reproductive Systems

Study Guide - Practice Questions