Parkinson's disease (characterized by tremors and progressive rigidity of limbs) is caused by the degeneration of brain neurons that are involved in movement control and make use of the neurotransmitter:

Assertion : Transmission of nerve impulse across a synapse is accomplished by neurotransmitters.
Reason : Transmission across a synapse usually requires neurotransmitters because there is a small space,i.e.,synaptic cleft,that separates one neuron from another.

Which of the following substances leads to the inhibition of the central nervous system?

What is the primary function of acetylcholine?

Which chemical substance is responsible for the transmission of nerve impulses across the synapse from one neuron to another?

In the neural system,a chemical synapse shows a synaptic gap of about . . . . . . .