Rside A&P12 Neuron

Nerve cells are called

• Neurons

• Neuroglial cells

• Schwann cells

• Glial cells

Neuron part that receives incoming messages:

• axon

• dendrite

• cell body

• myelin

Neuron part that sends outgoing message:

• axon

• dendrite

• cell body

• myelin

Neuron part responsible for regular life functions:

• axon

• dendrite

• cell body

• myelin

Fatty white material produced by Schwann cells that encases long neuron fibers:

• axon

• dendrite

• cell body

• myelin

The electrochemical signal carried by a neuron:

• neurotransmitter

• resting potential

• action potential

• zapper

Action potential stage: Na+ enters the axon

• depolarization

• repolarization

• refractory period

• resting potential

Action potential stage: K+ exits the axon

• depolarization

• repolarization

• refractory period

• resting potential

Action potential stage:

Na/K pump pushes Na+ outside and K+ inside the axon

• depolarization

• repolarization

• refractory period

• resting potential

Na+ maintained outside axon,

K+ maintained inside axon

• depolarization

• repolarization

• refractory period

• resting potential