Topics are communication within a neuron and communication between neurons

Please explain the process of an action potential including the key terms such as depolarization, hyper polarization, threshold of excitement, and sodium potassium pumps.

Please explain transmission between neurons including receptor types (i.e. ionotropic and metabotropic) and post synaptic potential. Also please discuss Excitatory Post Synaptic Potential (EPSP) and Inhibitory Post Synaptic Potential (IPSP).