Neuron and Action Potential

The part of the neuron that receives incoming messages is the

• dendrite

• axon

• cell body

• axon terminal

The part of the neuron that is protected by the myelin sheath is the

• cell body

• dendrites

• axon

• axon terminals

The cell body contains the

• dendrites

• axon terminals

• nucleus and many organelles

• myelin sheath

Tags

NGSS.MS-LS1-2

When a neuron is at REST,

• the inside of the neuron is negatively charged compared to the outside.

• the inside of the neuron is positively charged compared to the outside.

• there is no charge difference established

• none of these is true

An electrical impulse within a single neuron is called a

• synapse

• membrane potential

• action potential

• cell body

Depolarization occurs when

• sodium channels open

• potassium channels open

• sodium channels close

• potassium channels close

Depolarization is occuring at number

• 1

• 2

• 4

• 5

Tags

NGSS.HS-PS3-5

Sodium channels are open during

• 1

• 2

• 4

• 5

What maintains the resting membrane potential in a neuron?

• sodium-potassium pumps

• sodium channels

• potassium channels

• gravity

Tags

NGSS.MS-LS1-2

Which of the following uses ACTIVE transport?

• sodium-potassium pump

• sodium channel

• potassium channel

• diffusion