Which Neurological Disease Below Is CORRECTLY Matched with a Cause

question 181

Multiple Choice

Which neurological disease below is CORRECTLY matched with a cause?

• A) Huntington's disease -degeneration of motor neurons in the spinal cord
• B) Parkinson's disease - death of dopaminergic neurons in the substantia nigra
• C) multiple sclerosis - death of neurons in the striatum
• D) amyotrophic lateral sclerosis - loss of myelin

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Definitions:

Melatonin

A hormone produced by the pineal gland that regulates sleep-wake cycles, its production increases in darkness to promote sleep.

Circadian Rhythms

Variations in behavior, physical condition, and mental state that occur on a 24-hour loop, primarily triggered by environmental light and dark conditions.

Circadian Rhythms

Natural, internal processes that regulate the sleep-wake cycle and repeat roughly every 24 hours.

Sleep/Wake Cycle

The circadian rhythm that regulates patterns of sleepiness and wakefulness over a 24-hour period.