The symptoms of multiple sclerosis are caused by:
A)excess myelin on axons.
B)loss of myelin around axons.
C)excess excitatory input.
D)excess inhibitory input.

Question

Quizplus · Accepted Answer

Loss of myelin around axons causes the symptoms of multiple sclerosis. Myelin is a fatty substance that insulates axons, the long fibers that transmit electrical signals from one neuron to another. When myelin is lost, the electrical signals are slowed down or blocked, which can lead to a variety of symptoms, including muscle weakness, numbness, tingling, and vision problems.

The Symptoms of Multiple Sclerosis Are Caused By