Extensions for receiving signals in neuron
dendrite

Long extension for transmitting on neuron
axon

Base of axon where signal generated
axon hillock

Branched end of axon
synapse

Chemical messenger at end of synapse
neurotransmitter

Membrane potential of neuron not sending signal
resting potential

Where is concentration of potassium highest
inside cell

Channel used to respond to stimuli in neuron
voltage-gated ion channel

Increase in magnitude of membrane potential
hyperpolarization

Opposite of hyperpolarization
depolarization

Change in polarization where magnitude of change varies with distance
graded potential

If depolarization shifts enough it results in what massive change (spike)
action potential

Period after action potential
refractory period

Gaps in myelin sheath where gated Na+ is, in non myelinated axons this is the whole thing 
nodes of Ranvier

How action potential jumps between nodes of Ranvier when myelinated
saltatory conduction

What is bound in synapse
ligand-gated ion channel

Common neurotransmitter in synapse
acteylcholine

Resting potential of neuron (+/- 10 mV of this)
-70mV

What process does neurotransmitter use
exocytosis