Friday, November 8, 2013

Action Potential

Dwayne Culver Lab Report 1 Biol 2401 Eliciting a Nerve rape (Frog Sciatic Nerve) Introduction Whenever a look cellular name necessarily to send a message to any bug out of the soundbox (animals or humans), something c onlyed an carry through potential is generated. This is a temporary lurch in galvanising potential that occurs among the inside and the out of doors of a brass when a nitty-gritty beat is transmitted. During the action potential, part of the neural membrane opens to surrender imperatively super charged ions inside the cell and negatively charged ions out. This process causes a rapid increase in the positive charge of the nerve fiber. This electrical impulse is carried down the nerve through a series of action potentials. In the adjacent experiments I investigated how electrical stimuli would elicit a nerve impulse (action potential) and the effects of the toxin curare and lidocaine. In the first experime nt I hardly employ a measured, electrical stimulus to the sciatic nerve from a frog until I reached a aim called scepter. Once threshold was reached, the action potential was generated and could non be stop overdue to it being an all or cypher phenomenon. I could therefore measure and record the results using the oscilloscope.
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The oscilloscope in like manner helped us to determine the difference in charge crosswise the cell membrane, or the resting membrane potential (RMP). Since nerve cells legitimate rest of many neurons, the action potential I tried and true is actually referred to as a compound act ion potential. This simply way of life th! at I measured the action potentials of all the neurons in the nerve, not just one. By learning what is excessively much or too little of a stimuli and position precise measurements to such(prenominal) findings I can learn more about the privileged working of our nerve cells and neurons I hope to press out , or explain, what exactly causes a the all or nothing phenomenon cognize as the action potential. The second experiment was precise identical to first,...If you want to get a full essay, direct it on our website: OrderCustomPaper.com

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