6. The neurotransmitter passes across the synaptic cleft via _____.
Diffusion
Active transport
Co-transport
Osmosis
7. Inhibitory drugs ___ the nervous system by creating ___ action potentials in post-synaptic membranes.
Stimulate; fewer
Inhibit; more
Inhibit; fewer
Stimulate; more
8. Once the transmitter molecules and the protein receptors combine, protein channels open up in the post-synaptic membrane allowing ______ to diffuse from the cleft into the post-synaptic neurone.
