The membrane surface of the shafts of axons is exposed to extracellular fluid at the _____________.
 | |
 |
myelin gaps; |
 |
Nodes of Ranvier; |
 |
myelin sheaths; |
 |
synaptic nodes; |
 |
none of the alternatives is correct; |
INCORRECT - Myelin sheaths prevent extracellular fluid from contacting axonal membrane.
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