突触前的

Nerve impulse is conducted from one neuron to another neuron. The chernical synapse is composed of three

突触前份、突触后份和突触间隙组成，传导神经冲动的化学物质称为神经递质。

The relative timing between the presynaptic and postsynaptic spiking determined the direction and the extent of synaptic changes.

在前突触与后突触的相对尖突激发时间，决定了神经突触改变的程度与方向。

A major challenge in studying the synapse is how to tell what observed effects are due to presynaptic factors and which to postsynaptic ones.

研究突触最大的困难在於如何区辨所观察到的反应是来自突触前或突触后因子所导致。

In the progress that presynaptic neuron was excited,which caused postsynaptic potential changing by the release of neurotransmitters,and then electrical signal was transferred,the function and form of synapses could change.

在突触前神经元兴奋，通过神经递质的释放，引起突触后电位的变化，从而完成电信号的传递过程中，突触本身的功能和形态都可能发生改变。

D. Excitatory postsynaptic currents evoked by different types of primary afferent fiber were distinguished with two measurements: the conduction velocity of afferent fibers and stimulus threshold.

d。应用纤维传导速度与引起突触后电流的刺激阈值二个指标，可区分不同类型突触前纤维介导引起的兴奋性突触后电流。

A major challenge in studying the synapse is how to tell what observed effects are due to presynaptic factors and which to postsynaptic ones.

研究突触最大的困难在于如何区辨所观察到的反应是来自突触前或突触后因子所导致。

Ltp and ltd at excitatory neuronal synapses are observed to be induced by precise timing of pre- and postsynaptic events.

兴奋神经元突触的ltp和ltd是由突触前和突触后活动的精确定时所诱导。

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.

外界感觉信息以动作电位的形式沿DRG细胞轴突由外周传向DRG细胞在脊髓背角的突触前膜，导致细胞膜去极化，引起电压依赖性〓通道的开放，〓内流介导突触前膜神经递质的释放，从而完成感觉信息由外周向脊髓的传递。

These EDD were proved to contain calcium by X-ray microprobe analysis. The addition of 10mM/L theophylline greatly reduced the deposits in plasma membrane, mitochondria and EDD were not observed or observed rarely in subsurface cisternae.

在青蛙交感神经节突触后神经元中，包含钙离子的EDD存在于质膜、亚表面池及线粒体中；在突触前神经末梢中，突触小泡的膜上也可观察到EDD。

We present a phenomenological description of a two-component process for synaptic plasticity and dynamical model.

我们给出了突触可塑性的ltp和ltd合成的过程、动力学模型及突触增强变化的预测模型，当用预测尖峰的不同频率训练和poisson分布训练时，将产生不同的突触前和突触后的平均电压。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。