Examples of using Ionic current in English and their translations into Portuguese
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Ionic currents, they flow into the brain's neurons causing voltage fluctuations;
EEG measures voltage fluctuations resulting from ionic current within the neurons of the brain.
The existence of an ionic current implies the presence of channels that allow ions to pass through the cell membrane.
Du Bois-Reymond Bernstein took this further,producing an electrode capable of detecting the ionic currents in the frog's legs.
Ebert et al demonstrated in an animal model that ionic currents in females, specifically in potassium channels, are significantly smaller than in males of the same species of rats.
In electrical synaptic transmission,electrical signals are communicated as an ionic current flow across ELECTRICAL SYNAPSES.
By blocking potassium channels,Fampyra reduces the leakage of ionic current through these channels, thereby prolonging repolarization and thus enhancing action potential formation in demyelinated axons and neurological function.
The internal circuit is completed when the hydroxide ions produced in this reaction at the cathode flow to the anode in the form of ionic current.
Once the cells suffer influence of the electromagnetic field for having iron ions and ionic currents inside, they tend to be organized in concentric circles.
The effects of tramadol on other ionic currents also suggest a direct effect on L-type Ca channels. Haeseler et al showed that tramadol, sufentanil and fentanil but not morphine blocked sodium currents of heterologously expressed NaV1.2 neuronal Na channels.
The depolarization provokes the opening of Na+ and K+ channels that are voltage dependent andallow the flow of ionic current from one side to the other side of the cell.
The electrical signs recorded from EcochG are the reflex of numerous ionic currents associated with the process of transduction in the cochlear hair cells and with the action potential generation on the cochlear nerve fibers: cochlear feedback MC, summation potential SP and the action potential AP.
Most mammalian synapses are chemical, butthere is a simple form of electrical synapse that allows the direct transfer of ionic current from one cell to the next.
To complete the circuit, carbon steel contact rings on either side of the toroids couple the ionic current induced in the sample to an electronic current that travels through a wire around the outside of the toroids.
Neurites of two cells connected Most mammalian synapses are chemical, butthere is a simple form of electrical synapse that allows the direct transfer of ionic current from one cell to the next.
In order to address such limitations,this investigation proposes using the ionic current sensor with two purposes: identification of combustion and knock phenomena.
That a depolarizing ionic current existed in the Purkinje fiber cells was already known; however, this was erroneously interpreted as a pure K current and thought to disappear during the whole time course of the action potential to be reactivated when the membrane potential reached its minimum value in phase 4.
The second critical element of their research was the use of the giant axon of the veined squid(Loligo forbesii),which enabled them to record ionic currents as they would not have been able to do in almost any other neuron, such cells being too small to study using the techniques of the time.
The effects of morphine on ionic currents in cardiac myocytes have shown not to depend on opioid receptor or to be mediated via d- and k-receptors. However, its cardioprotective effect is known to be due to the activation of d-receptors. Studies have shown that opioids like dextropropoxiphene, pethidine and leucine enkephalin reduce ICa-L but only the inhibition induced by d-receptor agonist leucine enkephalin was blocked by naloxone.
It is accepted that, in addition to its classical non-selective antagonist action on beta-noradrenergic receptors,propranolol inhibits ionic currents of high and low tension activated by Cain low concentrations and, in higher concentrations, it moderately suppresses potassium currents. .
It is currently accepted that the electrical disturbance genesis is related to blockage of ionic currents of potassium channels, notably in M cells of the human ventricle, with subsequent QT interval prolongation and dispersion QTD on the electrocardiogram ECG, closely related to the onset of torsades de pointes.
The increase of temperature leads to the increase of ion activity and free chance of insulating material, the corresponding increase of ion number,the increase of ionic conductivity current and the decrease of insulation resistance.
