ATI RN
Urinary System Questions Questions
Question 1 of 5
The triangular area of the urinary bladder between the two ureters posteriorly and the urethra anteriorly is the
Correct Answer: C
Rationale: Trigone is the bladder's triangular base (ureters to urethra) not sphincters, muscle, or epithelium. This defines anatomy, vital for structure, contrasting with control/lining.
Question 2 of 5
Which of these is a vasoconstrictor?
Correct Answer: D
Rationale: Angiotensin II constricts vessels not nitric oxide, natriuretic, or bradykinin (dilators). This identifies vasoconstrictor, key for BP regulation, contrasting with dilators.
Question 3 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 4 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 5 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.