Which Cells Are Excitable and Produce Electrical Signals
Nervous systems are composed of two types of cells neurons and glial cells. Receiving and responding to stimuli Producing and sending electrochemical impulses. Ch 7 The Nervous System 7 1 Ppt Download In photoreceptors olfactory neurons and some gustatory receptors these channels essentially report the results of antecedent events in a cascade of chemical reactions. . The neuron illustrated on the following page is a motor neuronthat is it controls muscle fibers. ¾Excitable tissues able to produce electric signals Nerve muscle cells ¾Electric signals brought about by changes in polarization 1. Excitable cells also produce smaller and slower signals called potentials Electrical graded action Chemical action. Two of the four primary tissue types contain excitable cells cells that receive stimuli and generate electrical signals. In photoreceptors olfactory neurons and some gustatory receptors these channels essentially report...