Page 56 - Color_Atlas_of_Physiology_5th_Ed._-_A._Despopoulos_2003
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A.  Nerve cell structure and function
                                     2  Myelinated and unmyelinated nerve fibers
        1  Neuron and                                Unmyelinated fibers
             synapse

                                                                       and Function

                              Dendrites
                 Soma
                       Axon hillock
                                       Mito-
                                       chondria                        Structure


                       Axon (neurite)  Schwann                         Neuron
                                   cells
                       Axolemma
                                                                       Plate 2.1
                       Endoneurium

                                Myelinated
                                  fibers

                                 Myelin
         Nodes                   sheath
         of Ranvier


                                       Electron microscopic view,
                                       1:22000 magnification.
                                       Photograph courtesy of Dr. Lauren A. Langford
                      Nucleus of
                      a Schwann cell
        Collaterals  Presynaptic ending
                    (terminal
                    button)           Electrical     3  Synapse (diagram)
                                    transmission
                                                         Presynaptic
                                                         membrane
                                   Chemical
                                 transmission
                               (neurotransmitter)        Synaptic
                                                         cleft
                                      Electrical         Postsynaptic
                                    transmission         membrane
                                                                      43

       Despopoulos, Color Atlas of Physiology © 2003 Thieme
       All rights reserved. Usage subject to terms and conditions of license.
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