Action! Potential! Flashcards
Crash course flash cards
The way that neurons carry impulses indicating a strong signal.
More frequent action potentials
The name for the difference in electrical charges comparing the inside of a cell to the outside of a cell.
Membrane potential
Ion channels that open at a specific membrane potential
Voltage-gated channels
What ions are floating outside of a resting neuron excitedly waiting to be let in, contributing to the polarized resting membrane potential
Sodium ions
The way that neurons carry impulses indicating a strong signal
More frequent action potentials
The way that neurons carry impulses indicating a weak signal
less frequent action potential
The period after it’s carried an action potential that a neuron cannot transmit another, because it is re-establishing resting potential and resetting voltage gated channels.
Refractory period
What is required to allow charged atoms to diffuse across a cell membrane?
ion channel
The process of bringing a neuron’s membrane potential back from near zero zero back down towards -70 mV
Repolarization
A small change in the membrane potential in a small region of a cell
graded potential
A change in membrane potential that brings it toward zero
depolarization
The name for the nervous impulse carried along the length of a neuron’s axon?
action potential
What is saltatory conduction?
How a myelinated axon carries an action potential that jumps from node to node
ion channels that open when a specific chemical binds to the channel
ligand-gated ion channels
Ion channels that open when they are stretched, pushed on, or temp changes.
mechanically gated channels
