BIOL 1107 Study Guide - Final Guide: Homeostasis, Fetus, Enzyme Inhibitor
Document Summary
Graded potential when a few channels open that only causes a little bit of change in the membrane part. Action potential bigger change, to trigger voltage gated channels. Action potentials to not propagate back up the axon. Aotuoimmune disease (ms) multiple sclerosis develops when the immune system targets oligodendrocytes, destorying myelin in the cns: coordination among neurons is reduced and muscles weaken, describe synaptic transmission across an electrical synapse and a chemical synapse. Synaptic vesicles at the end of axons that store neurotransmitters. Presynaptic neuron the neuron that contains synaptic vesicles at a synapse. Neuromodulator - a substance other than a neurotransmitter that is released by a neuron and transmits. Excitatory neurotransmitters depolarize postsynaptic neuron by making the inside of it more. Electrical synapse immediate response, directly from ion channel to channel through gap junctions. Chemical synapse slow, controlled, more abundant, more precise and selective use neurotransmitters. Serotonin inhibitory, regulates mood, appetite, rhythm and sleep.
