An infectious viral disease occurring in dogs, characterized by loss of appetite, a catarrhal discharge from the eyes and nose, vomiting, fever, lethargy, partial paralysis caused by destruction of myelinated nerve tissue, and sometimes death.

犬熱病發(fā)生在狗身上的一種傳染性病毒引起的疾病影音先锋来5566AV资源，主要特征是：無食物欲99re一区二区，眼鼻處有黏液，嘔吐七七久久，發(fā)燒美女黄色网站mmm，昏睡，由于有髓鞘的神經(jīng)組織受到損害而部分麻痹老熟妇仓乱视频一区二区，有時(shí)會(huì)導(dǎo)致死亡

Neural cell adhesion molecule L1, discovered in the 80s, is one of the matters that can promote nerve regeneration. It can mediate the interaction of cell-to-cell and cell-to-matrix, take great efforts on neurite outgrowth and fasciculation, migration of neural cells, formation of the myelin, structure of neural trace, transmembrane signal transduction, inhibiting apoptosis of neural cells, even on immune system and formation of the tumor. Li is discovered on the mouse's Cerebellar membrane primarily. Thereafter, it also is found in post- mitotic neurons, pre- and non-myelinating Schwann cells and so on.

神經(jīng)細(xì)胞粘附分子L1（L1）是80年代發(fā)現(xiàn)的具有促進(jìn)神經(jīng)再生作用的物質(zhì)欧美三级片黄色视频，它能介導(dǎo)神經(jīng)細(xì)胞與神經(jīng)細(xì)胞之間的粘附，在神經(jīng)軸突的生長(zhǎng)国外A片无码毛片免费视频、聚集国产日韩制服丝袜第一页，神經(jīng)細(xì)胞的轉(zhuǎn)移，纖維髓鞘的形成，神經(jīng)通路的構(gòu)建及信號(hào)的轉(zhuǎn)導(dǎo)欧美激情偷乱人伦小说视，抑制神經(jīng)細(xì)胞的凋亡甚至在免疫系統(tǒng)一本久久、腫瘤的發(fā)生等方面均具有非常重要的作用。L1最初是從小鼠的小腦膜中發(fā)現(xiàn)三级色频，后來發(fā)現(xiàn)在有絲分裂后的神經(jīng)元毛片全部免费播放无码，髓鞘形成前及非形成髓鞘的雪旺細(xì)胞等組織中同樣存在。

Myelin sheath thickness and maturity was superior in EFG group under electron microscopic observation.

超微結(jié)構(gòu)觀察：EGF組再生神經(jīng)的有髓纖維數(shù)操操操操干干干干干，髓鞘厚度97人妻人人操人人摸，髓鞘的成熟度明顯好于對(duì)照組。

In this paper, we first analyze the mechanism of action potential propagated alongan unmyelinated fiber, and present a hypothesis that the velocity of transmembranecurrent is the equivalent of the propagation velocity of action potential. Then usingthe H-H model and the cable equation we obtain the formula of the velocity. Insuccession, we apply a similar method to analyze the mechanism of action potentialpropagated along a myelinated fiber. Using the McNeal model and the CRRSS model,we obtain the formula of the velocity.

接下來亚洲Va欧美va国产综合久久，應(yīng)用與無髓鞘神經(jīng)纖維相類似的方法一级黄色日逼视频看看，分析了動(dòng)作電位在有髓鞘神經(jīng)纖維上的傳遞機(jī)制，同樣得出了可用跨膜電流的移動(dòng)速度來等效動(dòng)作電位傳遞速度的結(jié)論亚洲欧美丝袜精品，利用 McNeal 模型和 CRRSS 模型91在线精品，建立了有髓神經(jīng)纖維在興奮傳遞期間等效電路模型，并推導(dǎo)出了速度的計(jì)算模型在线观看中文字幕在线。

RESULTS: Chitin tubes containing NGF successfully induced the nerve regeneration, regularly arranged myelinated and unmyelinated axons could be observed across the 8 mm gaps, and the myelin sheath was thick with clear lamellar structure at 8 weeks after operation, The regenerated nerve fibers increased and were more mature at 16 weeks after operation.

結(jié)果 實(shí)驗(yàn)側(cè)術(shù)后8周毛片基地久久伊人91x32.cc，再生神經(jīng)中有髓和無髓神經(jīng)纖維排列整齊亚洲精品自拍私拍，有髓神經(jīng)的髓鞘厚97精品视频在线观看免费专区，板層結(jié)構(gòu)清晰；術(shù)后16周国内嫖妓无码视频在线观看，再生神經(jīng)中有髓和無髓神經(jīng)纖維數(shù)量增加午夜福利A片1000无码免费，形態(tài)接近正常神經(jīng)。

Many developing axons become myelinated by glial cells; this increase the speed of axonal conduction.

許多生長(zhǎng)中的軸索變成有髓鞘的神經(jīng)膠細(xì)胞优优视频国内A级毛片，他能增加軸索傳遞的速度亚州A√。

The number of regeneration nerve fibers, thick and degree of maturity of regeneration myelinated nerve sheath in NRF groups were more than those in the blank control group.

超微結(jié)構(gòu)觀察表明，實(shí)驗(yàn)組有髓神經(jīng)纖維的髓鞘形態(tài)在线无码视频网、厚度一级WWW、成熟度均優(yōu)于對(duì)照組，而變性纖維的數(shù)目少于對(duì)照組日韩在线观看视频欧美在线一区二区。

Results Under our experimental conditions, three kinds of NO donors when in lower concentrations could not cause obvious changes of axons while when the concentration of DETA NONOate was doubled, it could induce the non-selective demyelination and Wallerian degeneration of both sensory and motor nerve fibers.

結(jié)果：在本實(shí)驗(yàn)條件下国产黄片,A片，應(yīng)用三種NO供體的低濃度，都不能引起大鼠坐骨神經(jīng)軸突的改變久久精品亚洲天然东京热；將DETA NONOate濃度加倍則可導(dǎo)致軸突脫髓鞘和沃勒變性欧美性爱三级网站，但對(duì)有髓鞘纖維和無髓鞘纖維并無選擇性作用。

Basic neurophysiology teaches us that olfactory neurons are not myelinatded, effectively potentiating perception and processing of these kinds of stimuli.

基礎(chǔ)神經(jīng)生理學(xué)告訴我們天天干天天日天天爱天天插，嗅覺神經(jīng)元不是有髓鞘的www.天堂AV网站，它有效促進(jìn)感知和處理這些類型的刺激。

However, there were no statistically significant changes of the length density and the total volume of myelinated fibers and the total volume of myelin sheathes in the white matter of aged rats when compared with those of young rats.

但是有髓神經(jīng)纖維長(zhǎng)度密度、有髓神經(jīng)纖維總體積和髓鞘的總體積沒有顯著老年性改變国产一级AA片在线视频。

fascicle：束

移植物細(xì)胞是由有髓鞘的單個(gè)軸突和由軸突包繞的多組纖維構(gòu)成,形成神經(jīng)束(Fascicle). 功能測(cè)試結(jié)果表明,移植組比對(duì)照組明顯改善. 由嗅鞘細(xì)胞移植所誘導(dǎo)的神經(jīng)再生加強(qiáng)亦在其它研究中得到證實(shí),包括因脫髓鞘病變引起的電傳導(dǎo)阻滯亦能夠被克服.

myelin sheath：髓鞘

有的軸突外圍以髓鞘(myelin sheath),稱為有髓神經(jīng)纖維(myelinaied nerve fiber);無鞘者稱為無髓神經(jīng)纖維(nonmyelinated nerve fiber). 軸突的長(zhǎng)短,各種神經(jīng)細(xì)胞差異很大,如運(yùn)動(dòng)神經(jīng)細(xì)胞的軸突可長(zhǎng)達(dá)1m,而有些神經(jīng)細(xì)胞的軸突只有十余um.

myelinization,myelination：髓鞘形成

有髓鞘的 myelinated | 髓鞘形成 myelinization,myelination | 髓鞘破壞,髓鞘脫失 myelinoclasis

medullated：有髓鞘的

medullary tube 神經(jīng)管 | medullated 有髓鞘的 | medullated fiber 髓鞘釬維

medullated：有髓的,有髓鞘的

\\"后髓帆\\",\\"medullary velum,posterior\\" | \\"有髓的,有髓鞘的\\",\\"medullated\\" | \\"髓形成,髓鞘形成\\",\\"medullation\\"

medullated fiber：髓鞘釬維

medullated 有髓鞘的 | medullated fiber 髓鞘釬維 | medullated nerve fiber 髓鞘神經(jīng)釬維

medullation：髓形成,髓鞘形成

\\"有髓的,有髓鞘的\\",\\"medullated\\" | \\"髓形成,髓鞘形成\\",\\"medullation\\" | \\"骨髓炎,脊髓炎\\",\\"medullitis\\"

myelinated：有髓鞘的

髓鞘(白)質(zhì),髓磷脂 myelin | 有髓鞘的 myelinated | 髓鞘形成 myelinization,myelination

myelinated nerve fiber：有髓神經(jīng)纖維

有髓神經(jīng)纖維(myelinated nerve fiber)由軸突(或樹突)、髓鞘美女下部隐私扒开视频无遮挡、神經(jīng)膜構(gòu)成. 髓鞘(myelin sheath)及神經(jīng)膜(neurolemma)呈鞘狀包裹在軸突的周圍. 在軸突的起始部無髓鞘包裹,稱此部為起始段(initial segment)起始段遠(yuǎn)側(cè)的軸突部分,髓鞘呈節(jié)段包卷軸突,

myelinization：髓鞘形成

神經(jīng)元為因應(yīng)長(zhǎng)距離的傳導(dǎo)而有髓鞘形成(myelinization)之演化以節(jié)省訊息傳導(dǎo)的時(shí)間;但神經(jīng)細(xì)胞在成長(zhǎng)發(fā)育的過程如何進(jìn)行卻所知有限. 藉由探討神經(jīng)生長(zhǎng)因子(nerve growth factor)與神經(jīng)細(xì)胞間的作用,使我們對(duì)此問題可以得到初步的了解.