Neuron Anatomy and Physiology

3 ?

• Cell body

• Nucleus

• Axon

• Dendrite

• Schwann cell

2 ?

• Cell body

• Nucleus

• Axon

• Dendrite

• Schwann cell

Myelinated neurons in the brain make up

• White matter

• Grey matter

5 ?

• Axon hillock

• Node of Ranvier

• Axon

• Dendrite

• Schwann cell

Schwann cells around the axon form...

• Axon terminal

• Synaptic cleft

• Myelin sheath

• Dendrites

Which part of the neuron receives signals from other neurons?

• Axon terminal

• Myelin sheath

• Dendrite

• Axon

What part of the neuron transmits impulses away from the cell body?

• Nodes of Ranvier

• Axon

• Axon terminal

• Dendrites

What are the gaps between Schwann cells that help transmit impulses?

• Axon terminal

• Synaptic cleft

• Myelin sheath

• Nodes of Ranvier

Stimuli can excite or the neuron

• Polarized

• Depolarized

• Repolarized

• Refectory period

Which type of cell forms the myelin sheath in the peripheral nervous system?

• Oligodendrocyte

• Astrocyte

• Schwann cell

• Microglia