The urachus extends between:

Correct Answer: C

Rationale: Urachus (allantois remnant) connects umbilicus to bladder apex not neck, base, or penis; 'abus' likely OCR error for apex. This defines urachal path, critical for anomalies, contrasting with misplacements.

Correct Answer: C

Rationale: Transitional epithelium allows bladder expansion stretches with urine (e.g., multilayered, ~500 mL). Rugae aid but aren't primary folds alone insufficient. Villi are intestinal not bladder. Pseudostratified is respiratory not here. Epithelium's stretch distinguishes it, critical for capacity, unlike folds or wrong tissues.

Correct Answer: C

Rationale: Glomerular filtration occurs between glomerulus and glomerular capsule plasma filters into Bowman's space (e.g., GFR). Afferent/peritubular are vascular not filtration site. Efferent/peritubular are post-filtration incorrect. Peritubular/tubule is reabsorption not filtration. Glomerulus-capsule interface distinguishes it, critical for filtrate formation, unlike vascular or tubular errors.

Correct Answer: C

Rationale: Females have lower water percentage (~50% vs. males ~60%) due to more adipose tissue less water-rich than muscle (e.g., fat ~10% water, muscle ~75%). Higher water contradicts fat lowers. Muscle increases water opposite. Lower muscle isn't primary adipose key. Adipose's impact distinguishes it, critical for sex differences, unlike muscle or reverse errors.

Correct Answer: C

Rationale: ANH increases Na /water excretion reduces blood volume/BP (e.g., heart stretch response). Decrease contradicts ANH is natriuretic. Increase/increasing raises volume opposite. Increase/decreasing aligns distinguishes it, key to BP regulation, unlike retention or mismatched effects.