Many toxins responsible for motor disorders interact with the neurotransmitter
A)serotonin.
B)GABA.
C)acetylcholine (ACh).
D)glutamate.

Question

Many toxins responsible for motor disorders interact with the neurotransmitter 
A)serotonin. 
B)GABA. 
C)acetylcholine (ACh). 
D)glutamate.

Quizplus · Accepted Answer

Acetylcholine (ACh) is a neurotransmitter that is important for motor function. Toxins such as botulinum toxin and organophosphates can inhibit the release or synthesis of ACh, leading to motor dysfunction. Parkinson's disease is also associated with a depletion of ACh in certain parts of the brain, contributing to motor symptoms.

Answer: D 
 Glutamate is the primary excitatory neurotransmitter in the central nervous system, and is involved in motor function. Some toxins, such as methylmercury and lead, can disrupt glutamate signaling, leading to motor dysfunction. In addition, disorders such as Huntington's disease and amyotrophic lateral sclerosis (ALS) involve a disruption of glutamate metabolism and can lead to motor symptoms.

Therefore, both choices C and D are valid answers, as there are a variety of toxins that can interact with different neurotransmitters to cause motor disorders.

Many Toxins Responsible for Motor Disorders Interact with the Neurotransmitter