Action Potential

When a neuron is resting, the inside of the axon has a ____________ charge.

• positive
• negative

Describes the fact that a neuron fires at the same intensity despite the intensity of the stimulus.

• Threshold
• Repolarization
• All or None Principle
• Action Potential

The sodium-potassium pump creates 

• magnetic energy
• electrical energy
• light energy
• sound energy

Acetylcholine (ACh) is heavily involved with 

• muscle movements
• making memories
• blocking pain
• elevating mood

What is the normal resting potential of a neuron cell membrane?

• +40mV
• -30mV
• +55mV
• -70mV

Which ions are involved in an action potential?

• Na; Cl
• Na; K
• K; Cl
• Na; Ca

At which point on the diagram does depolarisation of the axon occur? 

• A
• B
• C
• D

The sodium potassium pump restores the resting potential. By which process does this work? 

• Osmosis
• Diffusion
• Facilitated diffusion
• Active transport

A membrane potential becoming less negative is called

• hyperpolarization
• depolarization
• repolarization
• polarization

In resting potential, neurons have more _________ on the outside of the cell membrane.

• K+
• NaCl
• Na+
• Cl-