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Surgery General 46e44460

The main barrier for diffusion of LA is:

A
Epineurium
B
Endoneurium
C
Perineurium
D
All of the above.
High-Yield Explanation
The main barrier for diffusion of LA is the perineurium. Endoneurium / Nerve membrane is the acute site of action and depend on lipid solubility of drug.

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