The venom of a cobra primarily affects the:

Parkinson's disease (characterized by tremors and rigidity in limbs) is caused by the degeneration of neurons in the brain that are associated with the secretion and use of which neurotransmitter?

The joint between the axon of a neuron and the dendrite of the next is called:

Synaptic vesicles contain chemicals called

Muscle contraction is initiated by a signal sent by the central nervous system by the release of . . . . . . .

$A$ synapse is formed by