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nmdcat.online July 7, 2026

In Parkinson’s disease, the neurological symptoms primarily result from the progressive degeneration of neurons that secrete

A. Serotonin
B. Acetylcholine
C. Gamma-aminobutyric acid (GABA)
D. Dopamine
✓

📝 Explanation

Parkinson's disease is characterized by the selective death of dopaminergic neurons in the substantia nigra of the midbrain, leading to tremors, rigidity, and loss of motor control.

📖 Additional Information

  • Serotonin
  • Acetylcholine
  • Gamma-aminobutyric acid (GABA)
  • Dopamine

Parkinson's disease is characterized by the selective death of dopaminergic neurons in the substantia nigra of the midbrain, leading to tremors, rigidity, and loss of motor control.

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