Electrogenic sodium pump and high specific resistance in nerve cell bodies of the squid.
An electrogenic sodium pump contributes to the membrane potential in squid nerve cell bodies, imparting a temperature dependence to the resting potential that is abolished by strophanthidin. The existence of a potential produced by the pump in the soma but not the axon is correlated with a higher membrane resistance in the soma. Thus, membranes from different parts of a neuron may have functionally significant differences in resistance.
D000818:Animals; D001693:Biological Transport, Active; D049832:Decapodiformes; D066298:In Vitro Techniques; D008564:Membrane Potentials / Q000187:drug effects; D009474:Neurons / Q000187:drug effects / Q000378:metabolism*; D012964:Sodium / Q000378:metabolism*; D013328:Strophanthins / Q000494:pharmacology; D013696:Temperature
D013328:Strophanthins; D012964:Sodium