Question

question 3
______ is a disease that affects the nerve cells, called motor neurons, which make muscles work in both the upper and lower parts of the body. this disease makes the nerve cells stop working and die.
a. encephalitis
b. tay - sachs disease
c. huntingtons disease
d. lou gehrigs disease

Explanation:

• Encephalitis is inflammation of the brain, usually due to infection.
• Tay - Sachs Disease is a genetic disorder that affects the nervous system, but it is mainly due to the accumulation of gangliosides in nerve cells (not motor neurons in the described way).
• Huntington's Disease is a genetic disorder that causes the progressive breakdown (degeneration) of nerve cells in the brain, but it has more to do with areas like the basal ganglia and is associated with chorea (involuntary movements), cognitive decline, etc.
• Lou Gehrig's Disease (Amyotrophic Lateral Sclerosis - ALS) specifically affects motor neurons. Motor neurons in the brain (upper motor neurons) and spinal cord (lower motor neurons) are affected. As the disease progresses, motor neurons stop functioning and die, leading to muscle weakness, atrophy, and eventually paralysis.

Answer:

D. Lou Gehrig's Disease