Which of the following statements are true of nerve tissue? (Read carefully and select all of the correct statements.)
A)The myelin sheath provides electrical insulation.
B)Astrocytes contribute to the blood-brain barrier.
C)Synaptic transmission requires rapid electrical impulses.
D)Myelin is produced by Schwann cells in the PNS and microglia in the CNS.
E)An axon carries impulses toward the cell body of a neuron.
F)The function of an inactivator is to inactivate an electrical impulse when it is no longer needed.

Question

Quizplus · Accepted Answer

A) The myelin sheath provides electrical insulation, allowing for faster and more efficient transmission of electrical impulses.
B) Astrocytes contribute to the blood-brain barrier by forming tight junctions with endothelial cells in capillaries, helping to regulate the substances that enter the brain. 
C) Synaptic transmission does not require rapid electrical impulses; it is a chemical process that involves the release of neurotransmitters.
D) Myelin is produced by Schwann cells in the PNS and oligodendrocytes in the CNS, not microglia.
E) An axon carries impulses away from the cell body of a neuron, not toward.
F) Inactivators do not exist within the nervous system.

Which of the Following Statements Are True of Nerve Tissue