PSY 110 Lecture Notes - Lecture 3: Selective Serotonin Reuptake Inhibitor, Myelin, Reuptake

• School: University of Miami
• Department: Psychology
• Course: PSY 110
• Professor: Barry Zwibelman

Document Summary

I. overview of the nervous system - pns (all the nerves throughout the body things we do control, and autonomic system digestion, blood pressure, heart rate, etc. However, you can learn to regulate your heart rate by using yoga and things like this) and cns (brain and spinal cord) The neuron - shortly after the microscope was invented, people started studying cells, especially the neuron. Terminal buds at end of terminal fibers; collection of neurotransmitters are. *myelin sheath serve to insulate the axon: the goal is to make it more efficient (speeds up the signal), and it also insulates the signal, which prevents short-circuiting; they are their own cells. They have important functions of their own. *myelin sometimes starts to break down (demyelinated disease), but there is treatment for this; causes serious problems in old age. *change in polarity down the axon when the cell is sending a signal held here allow messages to be sent to other cells.