Why Do the IA and PSA Require More Anesthetic Than

question 9

Multiple Choice

Why do the IA and PSA require more anesthetic than an infiltration of local anesthetic?

• A) The locations for injecting the IA and PSA are more posterior than anterior.
• B) The diameter of the nerve fiber is larger for the IA and PSA.
• C) The nerve fibers are unmyelinated.
• D) All of the above

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