1. Which neurotransmitter is primarily involved in the initiation of voluntary muscle movement? A. Acetylcholine B. Dopamine C. Serotonin D. GABA Answer: A. Acetylcholine Rationale: Acetylcholine is the neurotransmitter that motor neurons release to stimulate muscle contraction, which is essential for voluntary movement. 2. Damage to which area of the brain would most likely result in impaired movement coordination? A. Frontal lobe B. Parietal lobe C. Cerebellum D. Temporal lobe Answer: C. Cerebellum Rationale: The cerebellum plays a crucial role in motor control and damage to this area can lead to problems with coordination and precision of movements. 3. Which of the following is a characteristic symptom of Parkinson's disease? A. Hyperkinesia B. Bradykinesia C. Ataxia D. Spasticity Answer: B. Bradykinesia Rationale: Bradykinesia, or the slowness of movement, is a hallmark symptom of Parkinson's disease, a disorder of the central nervous system that affects movement. 4. In the context of movement, what does the term 'proprioception' refer to? A. The sense of the relative position of one's own parts of the body B. The ability to sense the movement and position of the body in space C. Both A and B