ATI RN
Urinary System Questions Questions
Question 1 of 5
The primary structure found within the medulla is the ________.
Correct Answer: A
Rationale: Loop of Henle dominates medulla for concentration not calyces (collecting), portal (liver), or ureter (external). This specifies medullary role, critical for osmolarity, contrasting with other structures.
Question 2 of 5
The renal medulla is composed of tissue called ______.
Correct Answer: A
Rationale: Medulla contains renal pyramids not nephrons (units), sinus (cavity), or pelvis (collecting). This defines medullary structure, key for concentration, contrasting with other terms.
Question 3 of 5
Capillary loops located in the medulla are also known as _________.
Correct Answer: A
Rationale: Vasa recta are medullary capillaries not urea collectors, trigone (bladder), or macula densa (DCT). This specifies countercurrent exchange, key for concentration, contrasting with other terms.
Question 4 of 5
Each kidney contains approximately ______ nephrons.
Correct Answer: B
Rationale: Kidneys have ~1 million nephrons not 10M, 100K, or 10K. This quantifies functional units, key for filtration capacity, contrasting with over/underestimates.
Question 5 of 5
The total number of orifices for outgoing and incoming of urine through the bladder is
Correct Answer: B
Rationale: Bladder has 3 orifices: 2 ureters (in), 1 urethra (out) not 2, 4, or 5. This counts openings, vital for anatomy, contrasting with miscounts.