Question

______ will be absent or damaged in someone experiencing multiple sclerosis.

a. Myelin Sheath
b. Synaptic Vesicles
c. Neuron Cell Body
d. Axon Terminal

Answer 1

The myelin sheath will be absent or damaged in someone experiencing multiple sclerosis.

Step-by-step explanation:

The correct answer is: a. Myelin Sheath

Someone experiencing multiple sclerosis will experience absence or damage to the myelin sheath. The myelin sheath is a fatty substance that surrounds and insulates the axon of a neuron, allowing for efficient transmission of electrical signals. In multiple sclerosis, the immune system attacks and destroys the myelin sheath, leading to impaired signal transmission and various neurological symptoms.

For example, individuals with multiple sclerosis may experience fatigue, vision problems, weakness in limbs, loss of balance, and tingling or numbness in extremities.

Answer 2

In multiple sclerosis, the myelin sheath surrounding nerve fibers is damaged, hindering the efficient transmission of electrical signals in nerve cells.

Step-by-step explanation:

The component that will be absent or damaged in someone experiencing multiple sclerosis (MS) is myelin sheath. MS is a neurological condition where the immune system mistakenly attacks the myelin, which is a fatty substance surrounding nerve fibers. This sheath acts as an insulator, increasing the speed at which electrical signals are transmitted along the nerve cells' axons. When the myelin is damaged, it impairs the signal transmission, leading to the symptoms associated with MS, such as vision problems, muscle weakness, fatigue, and coordination difficulties.