Hey JedKampe, There are numerous drugs and conditions that can cause a false positive for cocaine not to mention human error. Substances that can cause a false positive drug test result: Amoxicillin is an antibiotic in the penicillin group of drugs. It fights bacteria in your body. Ampicillin is another antibiotic similar to amoxicillin.
When the nerve is damaged,the action potential remains between the electrodes and doesn't reach the second electrode (i.e potential difference remains positive and doesn't go into negative phase) , the biphasic action potential changes into monophasic action potential i.e with single phase. Source(s):E: biphasic action potential change into the monophasic action? Why does the biphasic action potential change into the monophasic action potential after nerve injury between the two recording electrodes?
Another synergistic action of GABA is manifested by the activation of GABA (B) receptors localized on postsynaptic sites. Binding of GABA to these receptors leads to the activation of G-protein activated Inward Rectifier K + (GIRK or K ir 3) channel 6, hyperpolarization and postsynaptic inhibition 1.n the postsynaptic membrane, GABA (B) receptors activate K + channels and induce slow inhibitory postsynaptic potentials that inhibit GABA (A) receptor activity. Receptors on extrasynaptic membranes are probably activated by a GABA overflow from nearby synapses.Adapted from reference 5 with permission of Elsevier.