You are watching: Atp is used in the propagation of nerve impulses
When Lightning Strikes
This impressive cloud-to-surface lightning developed when a difference in electric charge gathered in a cloud relative to the ground. When the buildup of fee was great enough, a suddenly discharge of power occurred. A nerve impulse is similar to a lightning strike. Both a nerve impulse and a lightning strike occur due to the fact that of distinctions in electric charge, and also both an outcome in an electrical current.
When a neuron is not actively transmitting a nerve impulse, it is in a resting state, ready to transmit a nerve impulse. Throughout the relaxing state, the sodium-potassium pump maintains a difference in charge across the cell membrane the the neuron. The sodium-potassium pump is a system of active transport that moves sodium ions out that cells and also potassium ions into cells. The sodium-potassium pump moves both ion from areas of lower to higher concentration, using power in ATP and also carrier proteins in the cabinet membrane. Number \(\PageIndex3\)shows in greater detail how the sodium-potassium pump works. Sodium is the major ion in the fluid exterior of cells, and potassium is the principal ion in the fluid inside that cells. These distinctions in concentration develop an electrical gradient throughout the cell membrane, called resting potential. Tightly controlling membrane relaxing potential is critical for the infection of nerve impulses.
An action potential, additionally called a nerve impulse, is an electric charge that travels along the membrane of a neuron. It deserve to be generated when a neuron’s membrane potential is readjusted by chemical signal from a adjacent cell. In an action potential, the cell membrane potential alters quickly from an adverse to confident as salt ions flow into the cell through ion channels, when potassium ions flow out of the cell, as shown in number \(\PageIndex3\).