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9 Cards in this Set

  • Front
  • Back
At rest, the voltage gated sodium channel is (open/closed)
closed
___ transport depolarizes and ___ transport depolarizes
Na, K
LA (irreversibly/reversibly) blocks nerve conduction
reversibly
LA binds near (extra/intra)cellular side of channel
intra
Resting channels have (higher/lower) affinity for LA
lower
(myelinated/non-myelinated) fibers are more sensitive to LA
myelinated
With LA, which sensation is lost first and last?
first lost, pain
last lost, motor

(except in large mixed nerve bundles where motor nerves may be on outside)
T or F, the non-protonated form of LA crosses membrane
T
The (anionic/cationic) form of LA blocks the Na channel
cationic