Which is the only current medicinal treatment for ALS, which appears to affect the release of the neurotransmitter glutamate?

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: A

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.

Correct Answer: A

Rationale: Tremor, bradykinesia, and muscle rigidity are the correct answers because these are the cardinal features of Parkinsonism. Bradykinesia refers to slowness of movement, rigidity refers to increased muscle tone, and tremor is often present at rest. These symptoms result from the degeneration of dopaminergic neurons in the substantia nigra.

Correct Answer: C

Rationale: Anterior horn of the spinal cord is the correct answer because fibrillations and fasciculations are spontaneous muscle contractions that occur due to the degeneration of lower motor neurons located in the anterior horn. These contractions are a sign of denervation and are commonly seen in conditions like amyotrophic lateral sclerosis (ALS).

Correct Answer: B

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.