Compare and contrast the neural plasticity mechanisms of presynaptic acilitation & presynaptic inhibition. How many neurons are involved in hese plasticity mechanisms, i.e. homosynaptic vs. heterosynaptic? You should discuss frequency of action potentials in the first neuron, any activity of other neurons, and effect on amplitude of graded potentials in the final neuron in the series. Is the final neuron more or ess likely to produce action potentials following the activation of each plasticity mechanism?

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Immune Disorders

The collaboration between the cells and proteins that work together as a defense system against infection comprises the immune system.Each of them performs a variety of tasks to recognize and/or react against a foreign body.