Which of the following statements regarding the nervous system is correct?
A) Oligodendrocytes in the peripheral nervous system protect and insulate neurons.
B) Reuptake refers to the process whereby synaptic vesicles fuse with and release neurotransmitter into the postsynaptic neuron.
C) Postsynaptic hyperpolarization brings a neuron closer to firing an action potential.
D) An ion channel that allows K+ to flow freely into or out of the cell contributes to hyperpolarization of the cell.
Anaswer: D