Flashcards in AP I Deck (9)
So for a given length of axon the intracellular resistance is _______ than ECF resistance which has more _______
ion channels act like _______. Ions continue to _______ after positive charges have ceased flowing into the cell. The result of this is that l_______
-less current is delivered down the axon than was originally inserted.
Booster stations act by _______. Action potentials work in essentially the same way. The detector that senses the decaying message is the _______ and the energy source that propagates the message is the_______
-applying an energy boost to a decaying electrical signal when the incoming signal is detected
-voltage-gated sodium channel
-Na “battery”, i.e. the Na gradient that can inject extra positive charge into the cell
The _______ the membrane resistance becomes, the farther the voltage can spread down the axon, because it means _______
-there are fewer ion channels for charges to leak out of
Membrane capacitance is _______. These charges create _______
-the ability of charge to accumulate on two sides of a membrane
-an electrical force that that pulls oppositely charged ions toward it
Reducing membrane capacitance _______ the passive spread of voltage.
When current is injected into the cell, it must follow either through the _______ or into the _______
- ion channels (as resistors)
_______ internal resistance will slow the spread of voltage, as charge is _______ to the surrounding fluid.