It is well established that the cardial contraction is initiated when an action potential depolarizes the sarcolemma.

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Contact with the receptors depolarizes nerve fibers and starts an electric signal moving down the auditory nerve toward the brain.

與感受器的接觸會使神經(jīng)纖維退極化肏屄性爱欧美性爱，產(chǎn)生一個(gè)電訊號国内精品国产免费观看一级A片，沿著神經(jīng)傳入大腦久久性爱视频免费看。

Loss of these gradients depolarizes cell membranes, leading to the influx of calcium through voltage-gated calcium channels and triggering the release of neurotransmitters such as glutamate from presynaptic nerve terminals.

GLU與突觸后神經(jīng)元膜上的受體相結(jié)合WWW人人操人人干，導(dǎo)致鈉離子和鈣離子內(nèi)流，引起一系列的生物化學(xué)級聯(lián)反應(yīng)久久综合迷奸片。

These results suggest that in the central nervous system of small mammals, AP waveforms mature rapidly in many types of neurons, thus, coordinated activities in neuronal circuits may occur. In early postnatal development, GABA receptor mainly mediates an excitation effect, depolarizes P6 MGBv neurons and dramatically increases the frequency of AP firing. Inhibition of GABA receptor matures slowly along with increment of postnatal days.

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The transmission is conducted in the form of action potentials along the axon of DRG neuron to the presynaptic membrane in spinal dorsal horn. Action potential depolarizes the presynaptic membrane and activates the voltage-dependent Ca〓 channel. The influx of Ca〓 then triggers the release of neurotransmitter.

外界感覺信息以動作電位的形式沿DRG細(xì)胞軸突由外周傳向DRG細(xì)胞在脊髓背角的突觸前膜，導(dǎo)致細(xì)胞膜去極化国产偷情在线，引起電壓依賴性〓通道的開放性交黄色视频，〓內(nèi)流介導(dǎo)突觸前膜神經(jīng)遞質(zhì)的釋放，從而完成感覺信息由外周向脊髓的傳遞日韩美女福利禁止观看网站视频免费。