How much mmhg pressure is required to block the dorsal root? according to (Sharpless)

How much mmhg pressure is required to block the dorsal root? according to (Sharpless)

How much mmhg pressure is required to block the dorsal root? according to (Sharpless) 




A. 20 mmHg
B. 5 mm Hg
C. 10 mmHG
D. 30 mmHg










Answer: C