Alexander disease is a type of leukodystrophy in which myelin sheaths surrounding axons in the brain are destroyed.What type of cell is affected,and what is the outcome in Alexander disease?
A)Schwann cells are affected,and action potential propagation is slowed.
B)Oligodendrocytes are affected,and action potential propagation is slowed.
C)Schwann cells are affected,and action potential propagation is sped up.
D)Oligodendrocytes are affected,and action potential propagation is sped up.

Question

Quizplus · Accepted Answer

In Alexander disease, oligodendrocytes are affected, leading to destruction of myelin sheaths surrounding axons in the brain. This impairs the ability of neurons to propagate action potentials and can result in neurological symptoms such as loss of motor function and developmental delay.

Alexander Disease Is a Type of Leukodystrophy in Which Myelin