Once a neurotransmitter has been released into the synapse and has stimulated the postsynaptic membrane receptors it is necessary to eliminate it. Name two ways this can be done. Compare the sympathetic and parasympathetic nervous system in terms of anatomy, chemical transmitters and function. Diagram a typical synapse and label its parts. List at least three ways that a pharmacologist could modify its ability to transmit impulses.
Local potentials are decremental.
Make a drawing of the action potential. Indicate the voltage changes and label the periods of change. Superimpose on the tracing of the action potential a graph that relates the events of the action potential to permeability changes of the membrane. Node of Ranvier d. Draw and label the fluid mosaic model of the plasma membrane.