Lesson 2 Quiz

What is the cell body of a neuron also known as?

• Axon

• Dendrite

• Soma

• Synapse

What is the function of the axon hillock?

• To store neurotransmitters

• To integrate depolarization and hyperpolarization

• To insulate the axon

• To connect neurons

What is the function of oligodendrocytes?

• To produce myelin in the CNS

• To produce myelin in the PNS

• To transmit electrical impulses

• To form synapses

What is the role of the synaptic terminal?

• To generate action potentials

• To release neurotransmitters

• To insulate the axon

• To form the axon hillock

What is the primary function of nerve cells?

• To generate electrical signals

• To store energy

• To produce hormones

• To transport oxygen

What is the effect of depolarization at the axon hillock?

• It causes the neuron to shrink

• It generates an action potential

• It stops the action potential

• It insulates the axon

What happens when potassium channels open in a neuron?

• Potassium ions move out of the cell

• Sodium ions move into the cell

• Proteins are synthesized

• The neuron becomes positively charged

During the resting state, what must happen for a nerve to depolarize?

• Increase in external temperature.

• Decrease in external pressure.

• Enough ions must be present.

• Decrease in membrane potential.

What is the focus of the neurophysiology of nerve impulses?

• Nerve cell regeneration.

• Nerve impulse transmission.

• Nerve cell structure.

• Nerve cell growth.

What is the role of Schwann cells in the peripheral nervous system?

• To produce myelin

• To transmit nerve impulses

• To generate action potentials

• To form synapses