Physiology Fahraeus Lindquist effect is: A Increase in viscosity in vessels less than 0.5-1 mm in diameter B Decrease in viscosity in vessels less than 0.5-1 mm in diameter C Increase in viscosity in vessels more than 0.5-1 mm in diameter D Decrease in viscosity in vessels more than 0.5-1 mm in diameter 💡 Explanation Fahraeus Lindquist effect is: ✓ Correct Answer: A. Increase in viscosity in vessels less than 0.5-1 mm in diameter