Ví dụ về việc sử dụng Depolarization trong Tiếng anh và bản dịch của chúng sang Tiếng việt
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The rate of fast blocking is determined by the membrane depolarization.
Membrane depolarization leads to increased blocking and decreased unblocking of the channels.
In addition, it disrupts bacterial membranes by depolarization.[2][9].
Action potentials are triggered when enough depolarization accumulates to bring the membrane potential up to threshold.
(A) Movement of n-particles as a response to sudden depolarization.
Depolarization of axon terminals, in general, triggers the release of neurotransmitter into the synaptic cleft.
(A) Movement of m- and h-particles as a response to sudden depolarization.
Depolarization opens both the sodium and potassium channels in the membrane, allowing the ions to flow into and out of the axon, respectively.
Na+ channels open at the beginning of the action potential, and Na+ moves into the axon,causing depolarization.
Dofetilide does not affectdV/dTmax(the slope of the upstroke of phase 0 depolarization), conduction velocity, or the resting membrane potential.
In order to prevent depolarization of the ceramic elements it is necessary that every precaution be taken to prevent them from being subjected to direct current.
A typical action potential begins at the axon hillock[34]with a sufficiently strong depolarization, e.g., a stimulus that increases Vm.
This change triggers depolarization in the section of the axon next to it, and so on, until the rise and fall in charge has passed along the entire length of the axon.
It is considered to be a neuromuscular ganglioblocker,which causes sustained depolarization and convulsive paralysis of round-shaped helminth muscles.
Sulfonylureas such as glyburide bind to ATP-sensitive potassium channels on the pancreatic cell surface,reducing potassium conductance and causing depolarization of the membrane.
When the nerve endings are stimulated, sodium enters the neuron,causing depolarization of the nerve and subsequent initiation of an action potential.
If the action pulses of all cells are of equal duration,the repolarization would of course accurately follow the same sequence as depolarization.
The action of praziquantel isbased on the inhibition of fumarate reductase, persistent depolarization of muscle cells, impaired energy metabolism, which causes paralysis and death of helminths.
Other ECG effects include a wide notched P wave, wide QRS complex, depressed ST segment, and U waves.These are the results of both slowed depolarization and repolarization.
At that site, ACh normally produces electrical depolarization of the postjunctional membrane of motor end-plate, which leads to conduction of muscle action potential and subsequently induces skeletal muscle contraction.
On release, acetylcholine acts almost instantly,to cause a sequence of chemical and physical events(starting with depolarization of the motor endplate) which cause contraction of the muscle fibre.
Depolarization stimulates calcium ion influx through voltage-sensitive calcium channels, raising intracellular concentrations of calcium ions, which induces the secretion, or exocytosis, of insulin.
Like other local anesthetics belonging in the amide group trimecaine decreases the cell membrane permeability,causes depolarization and shortens the action potential.[3] Anesthetic effect starts in 15 minutes and remains 60- 90 minutes.
This depolarization is often caused by the injection of extra sodium cations into the cell; these cations can come from a wide variety of sources, such as chemical synapses, sensory neurons or pacemaker potentials.
The reader may again verify that the sodium conductance is proportional to m3h by comparing this curve and the curve in Figure 4.14,representing the sodium conductance at 88 mV depolarization(which is the value closest to 85 mV used in Figure 4.16).
In this case, increased membrane depolarization, in conjunction with the inability of the sodium-calcium exchanger to function due to depleted ATP stores, causes the activation of calcium-dependent signal transduction.
The reader may verify that the potassium conductance really is proportional to n4, by comparing this curve and the curve in Figure 4.11representing the potassium conductance at 88 mV depolarization(which is the value closest to 85 mV used in Figure 4.13).
Once the action potential is triggered, the depolarization(2) of the neuron activates sodium channels, allowing sodium ions to pass through the cell membrane into the cell, resulting in a net positive charge in the neuron relative to the extracellular fluid.
Ganaxolone binds to allosteric sites of the GABAA receptor to modulate and open the chloride ion channel, resulting in a hyperpolarization of the neuron.[1] This causes an inhibitory effect on neurotransmission,reducing the chance of a successful action potential(depolarization) from occurring.[1][2][3].
Leptin activates the anorexigenic axis(appetite suppression) in the arcuate nucleus(ARC) of the hypothalamus by increasing the frequency ofaction potentials in the hypothalamic POMC neurons by depolarization through a nonspecific cation channel and by reduced inhibition by local orexigenic neuropeptide-Y(NPY) neurons.