Action Potentials

Action potentials run along the ______ from ______ to ________.

• axon, dendrites, axon terminals

• axon, axon terminals, dendrites

• dendrites, axon, axon terminals

• axon terminals, axon, dendrites

An action potential is __________ in nature, with the inside of the neuron being more ________.

• chemical, negative

• electrical, negative

• chemical, positive

• electrical, positive

An action potential takes about ______

• 1 second

• 1/1,000th of a second

• 1/2 a second

• 1/10th of a second

This shows the _________ undergoing a ___________

• axon, reversal in direction

• dendrite, reversal in direction

• axon, reversal in charge

• dendrite, reversal in charge

Identify each phase of the action potential: Resting potential after repolarization of previous action potential.

Tags

NGSS.HS-PS2-5

Click On - Action potential propagates down axon to the axon terminal

Tags

NGSS.HS-PS2-5

Identify each phase of the action potential: Repolarization

Tags

NGSS.HS-PS2-5

Identify each phase of the action potential: Resting potential prior to the impulse conduction.

Identify each phase of the action potential: Depolarization

What is the insulating membrane that surrounds parts of the axon that helps to protect & propagate action potential?

• Axon

• Dendrites

• Node of Ranvier

• Myelin Sheath