Neurons

The part of the neuron that receives messages from other neurons

• axon
• dendrite
• cell body
• Schwann cell

The part of the neuron that sends messages to other neurons

• axon
• dendrite
• cell body
• Schwann cell

Part of the neuron that insulates the axon to speed up action potentials

• cell body
• node of Ranvier
• Schwann cell
• neurotransmitter

The substance inside Schwann cells that enables them to insulate neurons is

• cytoplasm
• calcium
• dopamine
• myelin

The location of neurotransmitters

• axon terminals
• dendrites
• Schwann cells
• cell body

During the resting state of a neuron there is more __________ inside and more ___________ outside

• potassium/sodium
• sodium/potassium
• potassium/calcium
• calcium/sodium

During which stage of an action potential does sodium rush into the cell?

• depolarization
• hyperpolarization
• resting potential
• repolarization

During which stage of an action potential does extra potassium leave the cell, preventing additional action potentials?

• depolarization
• hyperpolarization
• resting potential
• repolarization

During repolarization, what ion does what?

• potassium enter
• potassium leaves
• sodium enters
• potassium leaves

During depolarization, what ion does what?

• potassium enter
• potassium leaves
• sodium enters
• potassium leaves

Tags

NGSS.HS-PS2-5