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Unmarked drugs are tested on neurons in order to identify them. The conditions of the neuron...

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Medical Sciences

Unmarked drugs are tested on neurons in order to identify them.The conditions of the neuron are that it is only permeable to K, Cland Na.

1. The first test depolarizes the resting membrane potentialfrom -70mV to -20mV. What are two reasons for this happening?

2. The second test on a new neuron, hyperpolarizes them -70mV to-90mv? What happened?

3. The last test resulted in no effect at first, then the Vmgoes to 0mV and remains there. Why does this happen?

Answer & Explanation Solved by verified expert
4.4 Ratings (819 Votes)
The neurons are called in polarized stage when it is in 70mV In this stage more sodium ions are in the outside of the neurons and potassium and chlorine ions are present inside the neurons When there a series of depolarisation and repolarisation occurs due to the changes in the ions is called action potential It leads to close or away from the threshold limit 1 In the drug test it    See Answer
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