The targets of angiotensin II are blood vessels and

Correct Answer: B

Rationale: Angiotensin II targets blood vessels (vasoconstriction) and adrenal cortex (aldosterone release), not nerves, medulla (catecholamines), or nephron directly. This specifies RAAS effects, critical for sodium retention, contrasting with other systems.

Correct Answer: B

Rationale: Renin, an enzyme from JG cells, initiates RAAS to raise BP, not aldosterone (steroid), angiotensinogen (substrate), or angiotensin II (product). This identifies BP regulator, critical for hypertension, contrasting with downstream factors.

Correct Answer: B

Rationale: Renal stones include calcium oxalate, uric acid, and magnesium phosphate not cholesterol (biliary stones). This distinguishes urinary stone composition, critical for treatment, contrasting with lipid-based calculi.

Correct Answer: C

Rationale: Distal convoluted tubule follows the ascending limb, not descending (before), PCT (earlier), or collecting duct (later). This sequences nephron flow, critical for reabsorption, contrasting with misordering.

Correct Answer: C

Rationale: Liver on the right displaces the right kidney lower, not size differences or heart (left). This explains asymmetry, key for anatomical positioning, contrasting with organ size myths.