[HTHSCI 1H06] - Final Exam Guide - Ultimate 28 pages long Study Guide!
30 Mar 2017
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Standard household current in the united states and canada is 110 v ac with a frequency of 60 hz (cycles per second). Skeletal muscle is stimulated into tetany (a very long-lasting type of muscle cramp) by. When this occurs the person"s grasp is uncontrollably locked onto the object, which can sufficient currents with frequencies of 40-110 hz increase the length of time the current passes through the body and may result in greater injury. Occurs because the flexor muscles are stronger than. In contrast, direct current (dc) tends to produce a single large muscular contraction that often throws the electrocuted person away from the source. The message for the muscle fibers to contract has to travel from the cell body of the neuron (the soma) along the axon to the end of the neuron. This traveling message is a wave of membrane potential change.
