ATI RN
Questions On The Urinary System Questions
Question 1 of 5
Filtrate in the distal convoluted tubule:
Correct Answer: A
Rationale: Filtrate in the distal convoluted tubule (DCT) has just exited the loop of Henle not pre-loop (PCT), pre-glomerulus (blood), or pre-PCT (glomerulus). The loop concentrates filtrate before DCT fine-tunes it, placing it post-loop in the nephron sequence. This clarifies filtrate progression, key for nephron function, contrasting with earlier stages.
Question 2 of 5
The caudal somites migrate to give the following except:
Correct Answer: D
Rationale: Caudal somites form genital tubercle, swellings, external sphincter, and abdominal wall not internal anal sphincter (splanchnic mesoderm). This excludes visceral muscle, key for somitic roles, contrasting with included derivatives.
Question 3 of 5
The definitive urogenital sinus in male gives rise to:
Correct Answer: D
Rationale: Definitive urogenital sinus forms lower prostatic, membranous, and most spongy urethra not just membranous/spongy; 'all' is correct. This specifies sinus role, key for male urethra, contrasting with limited parts.
Question 4 of 5
When the oxygen content of the blood decreases, the kidneys will release
Correct Answer: A
Rationale: Low blood oxygen triggers erythropoietin release stimulates RBC production (e.g., peritubular cells). Renin responds to pressure not oxygen. Angiotensin is RAAS product not kidney-released. Calcitriol is vitamin D not oxygen-linked. Erythropoietin's hypoxia response distinguishes it, key to oxygenation, unlike pressure or mineral roles.
Question 5 of 5
As the male urethra leaves the urinary bladder, it is surrounded by the:
Correct Answer: C
Rationale: The prostate gland surrounds the male urethra at bladder exit prostatic urethra (e.g., ~20 cm total). Adrenals are kidney-top not urethra. Bulbourethral glands are distal penile urethra. Hilum is kidney not bladder. Prostate's position distinguishes it, key to male anatomy, unlike other glands or sites.