Question 1

Which of the following best describes the path of blood flow through the kidney, starting from the renal artery?

Accepted Answer

Renal artery → segmental arteries → interlobar arteries → arcuate arteries → cortical radiate arteries → afferent arterioles

Question 2

A patient presents with a blockage in the efferent arteriole of the nephron. Which of the following consequences is most likely to occur?

Accepted Answer

Increased hydrostatic pressure in the glomerulus, leading to increased filtration

Question 3

Which structure is responsible for collecting urine directly from the renal papilla?

Accepted Answer

Minor calyx

Question 4

During a laboratory dissection, you are asked to identify the structure that separates the renal cortex from the renal medulla. Which structure should you point to?

Accepted Answer

Arcuate arteries

Question 5

Which of the following best describes the sequence of urine flow from the nephron to the external environment?

Accepted Answer

Collecting duct → minor calyx → major calyx → renal pelvis → ureter → bladder → urethra

Question 6

Which of the following is the correct order of structures that filtrate passes through in the nephron?

Accepted Answer

Glomerular (Bowman's) capsule → proximal convoluted tubule → nephron loop (loop of Henle) → distal convoluted tubule → collecting duct

Question 7

A patient has damage to the internal urethral sphincter. Which of the following symptoms is most likely?

Accepted Answer

Involuntary leakage of urine from the bladder

Question 8

Which of the following best describes the function of the renal corpuscle?

Accepted Answer

Filtration of blood plasma

Question 9

If the afferent arteriole is constricted, what is the expected effect on glomerular filtration rate (GFR)?

Accepted Answer

GFR will decrease

Question 10

Which of the following equations correctly represents the relationship for net filtration pressure (NFP) in the glomerulus?

Accepted Answer

$$NFP = (P_\mathrm{GC} - P_\mathrm{BC}) - \pi_\mathrm{GC}$$

Question 11

A kidney stone is lodged at the junction of the renal pelvis and the ureter. Which of the following is the most likely immediate consequence?

Accepted Answer

Obstruction of urine flow from the kidney to the bladder

Question 12

Which of the following statements about the bladder is correct?

Accepted Answer

The trigone is a triangular area between the openings of the ureters and the urethra

Question 13

Which of the following best describes the function of the nephron loop (loop of Henle)?

Accepted Answer

Establishes a concentration gradient in the medulla for water reabsorption

Question 14

A patient with severe dehydration is likely to have which of the following changes in their urine?

Accepted Answer

Increased urine concentration and decreased urine volume

Question 15

Which of the following is a function of the distal convoluted tubule?

Accepted Answer

Selective reabsorption and secretion of ions to regulate blood pH and electrolyte balance

Question 16

Which of the following structures is NOT part of the renal corpuscle?

Accepted Answer

Nephron loop (loop of Henle)

Question 17

Which of the following best explains why the renal medulla appears striated?

Accepted Answer

It contains parallel bundles of nephron loops and collecting ducts

Question 18

A patient is unable to voluntarily control urination. Which structure is most likely damaged?

Accepted Answer

External urethral sphincter

Question 19

Which of the following arteries directly supplies blood to the glomerulus?

Accepted Answer

Afferent arteriole

Question 20

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

Accepted Answer

Transports urine from the kidney to the bladder

Urinary System: Structure, Blood Supply, and Nephron Anatomy

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