Biopsych Test 2 Studytips

Module 2.2
Know:
What the ion difference between the inside and the outside of the neuron is, why it exists and what purpose it serves
Know the related vocabulary (selective permeability, Na+/K+ pump, polarization, depolarization, hyperpolarization, resting potential)
Know what happens in the axon if a neuron receives sufficient excitatory input to its dendrites
Know the related vocabulary (voltage-activated Na+ channels, threshold, action potential(AP), K+ channels, propagation of the AP down the axon, all or none law, absolute and relative refractory periods)
Know the difference between APs  being carried in naked neurons versus those carried in myelinated axons; saltatory conduction
Know what happens when the action potential reaches the axon terminals ( and related vocabulary - exocytosis, Ca++ channels)

Know what happens when neurotransmitter activates either ionotropic or metabotropic receptors on dendrites
Know the related vocaulary (EPSP, IPSP, spatial and temporal summation, threshold; G-protein, second messenger, various metabolic actions)

Know about the initial discovery of chemical transmission at synapses and the various types of neurotransmitters we discussed
Know the various steps necessary in normal chemical transmission (synthesis, transport of large molecule neurotransmitters, storage, release, binding to receptors,enzymatic inactivation  or reuptake via presynaptic transporters, feedback to the presynaptic neuron via autoreceptors)
Know how the common categories of psychoactive drugs affect chemical transmission.