Intermediate Nephron Quiz
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This quiz contains 10 questions. Click below to begin.
Q1. What pressure drives filtration at the glomerulus?
- Glomerular hydrostatic pressure
- Bowman’s capsule pressure
- Renal arterial pressure
- Colloid osmotic pressure
Q2. Which layer of the filtration barrier prevents passage of large plasma proteins?
- Visceral epithelium
- Basement membrane
- Fenestrated endothelium
- Parietal layer of Bowman’s capsule
Q3. What is the role of podocytes in the glomerulus?
- Produce erythropoietin
- Create filtration slits
- Absorb glucose from filtrate
- Store calcium
Q4. Which region of the nephron has the highest water permeability?
- Distal tubule
- Thick ascending limb
- Proximal tubule
- Descending limb of loop of Henle
Q5. What substance is secreted by the proximal tubule to help eliminate drugs?
- Para-aminohippurate (PAH)
- Aldosterone
- Antidiuretic hormone
- Creatinine
Q6. Which ion is actively reabsorbed in the thick ascending limb of the loop of Henle?
- Na⁺, K⁺, and Cl⁻
- Ca²⁺ only
- HCO₃⁻ only
- Phosphate
Q7. How does aldosterone affect the nephron?
- Inhibits water reabsorption
- Decreases Na⁺ reabsorption, retains K⁺
- Increases Na⁺ reabsorption, K⁺ secretion
- Blocks bicarbonate secretion
Q8. Where is the juxtaglomerular apparatus located?
- In adrenal cortex
- At renal pelvis junction
- Inside the loop of Henle
- Near vascular pole of glomerulus
Q9. What is the function of macula densa cells?
- Reabsorb glucose
- Filter urea
- Secrete ADH
- Monitor NaCl and regulate GFR
Q10. Which portion of the nephron is impermeable to water but reabsorbs ions?
- Descending limb of loop of Henle
- Bowman’s capsule
- Collecting duct
- Thick ascending limb of loop of Henle