Integumentary System Lab Report Example | Topics and Well Written Essays - 250 words

Integumentary System - Lab Report Example This occurs after the neuron has reached action potential and it is the time that is necessary before the neuron is ready to stimulate the movement of ions for another electrical charge. There are two different kinds of refractory periods: absolute and relative. Absolute refractory periods are when it is impossible to initiate another transmission of electrical charge after action potential is reached. Relative refractory periods are which transmission of another electrical charge is inhibited, but it is not impossible to initiate. There are three different states in which neurons must exist in order to produce neural communication: depolarization, repolarization and hyperpolarization. Depolarization is when the inside of the cell becomes more increasingly positive as ions move in and out. If there is enough movement of ions to create a large change in electrical potential, action potential will result. Repolarization occurs after depolarization and action potential have occurred. Du ring this, ions move back into the cell which causes it to be negative again. Hyperpolarization is when the cell becomes increasingly negative which can inhibit action potential from being reached which inhibits the cell from transmitting an electrochemical signal.