Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the functional unit of the kidney?
A. Glomerulus
B. Nephron
C. Bowman's capsule
D. Loop of Henle
Correct Answer: B
Rationale: The nephron filters blood, reabsorbs nutrients, and
produces urine.
2. Which structure of the nephron is responsible for filtration?
A. Bowman's capsule
B. Proximal tubule
C. Distal tubule
D. Collecting duct
Correct Answer: A
,Rationale: Bowman's capsule surrounds glomerulus and collects
filtrate.
3. Which structure concentrates urine by reabsorbing water?
A. Loop of Henle
B. Proximal tubule
C. Distal tubule
D. Collecting duct
Correct Answer: A
Rationale: Loop of Henle establishes osmotic gradient for water
reabsorption.
4. Which part of the nephron reabsorbs most glucose?
A. Proximal tubule
B. Loop of Henle
C. Distal tubule
D. Collecting duct
Correct Answer: A
Rationale: Proximal tubule reabsorbs nutrients, ions, and water.
5. Which hormone increases water reabsorption in the collecting
duct?
A. ADH
B. Aldosterone
C. Cortisol
,D. Renin
Correct Answer: A
Rationale: Antidiuretic hormone makes collecting duct more
permeable to water.
6. Which hormone increases sodium reabsorption?
A. Aldosterone
B. ADH
C. Cortisol
D. Renin
Correct Answer: A
Rationale: Sodium reabsorption leads to water retention and
increased blood pressure.
7. Which structure carries urine from the kidney to the bladder?
A. Ureter
B. Urethra
C. Collecting duct
D. Nephron
Correct Answer: A
Rationale: Ureters transport urine from renal pelvis to bladder.
8. Which structure stores urine?
A. Urinary bladder
B. Ureter
, C. Nephron
D. Urethra
Correct Answer: A
Rationale: The bladder temporarily stores urine before excretion.
9. Which structure transports urine out of the body?
A. Urethra
B. Ureter
C. Bladder
D. Nephron
Correct Answer: A
Rationale: Urethra allows urine to exit the body.
10. Which blood vessel brings blood to the glomerulus?
A. Afferent arteriole
B. Efferent arteriole
C. Renal vein
D. Renal artery
Correct Answer: A
Rationale: Afferent arteriole delivers blood for filtration.
11. Which blood vessel carries filtered blood away from
glomerulus?
A. Efferent arteriole
B. Afferent arteriole