Francisco has a disease that is destroying the myelin on his neurons. What effect will this disease most likely have on Francisco?
A) His brain and spinal cord will completely cease to function.
B) He will be paralyzed on one side of his body but not the other.
C) His neural signals will slow down.
D) His neural signals will speed up.

Question

Quizplus · Accepted Answer

Myelin is a fatty substance that surrounds neurons, allowing signals to travel faster along the neuron. If the myelin is destroyed, neural signals will slow down, leading to potential issues with muscular control, coordination, and sensation. Option A is incorrect as the disease would not cause brain and spinal cord to completely cease functioning. Option B is also incorrect as destroying the myelin would not only cause paralysis on one side but not the other. Option D is incorrect as the destruction of myelin would not result in neural signals speeding up.

Francisco Has a Disease That Is Destroying the Myelin on His