ENS 307 Quiz 1

Depolarization refers to the cell membrane potential INCREASING (becoming less negative)

• True

• False

What does the Central Nervous System (CNS) comprise of?

• Peripheral and Somatic Systems

• Afferent and Efferent Nerves

• Brain and Spinal Cord

• Action Potentials

Where does an Action Potential first occur within a neuron?

• Axon Hillock

• Dendrite

• Cell Body

• Nodes of Ranvier

What is the polarity of a resting membrane potential?

• Negative

• Positive

• The what?

• Neutral

Which of the following promote repolarization of the membrane potential?

• Inhibitory Post-Synaptic Potentials (IPSPs)

• Excitatory Post-Synaptic Potentials (EPSPs)

• Influx of Na+ ions into the cell

• Polar Bears