Physiology In a cystometrogram, LaPlace’s law has application at: A Phase Ia (less than 100 mL in bladder) B Phase Ib (100-400 mL in bladder) C Phase II (more than 450 mL in bladder) D All the phases (any volume of urine in bladder) 💡 Explanation In a cystometrogram, LaPlace's law has application at: ✓ Correct Answer: B. Phase Ib (100-400 mL in bladder)