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軍團(tuán)菌1-15群間接免疫熒光IFA熒光試劑盒

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【公司名稱(chēng)】 廣州健侖生物科技有限公司
【】    楊永漢 
【】 
【騰訊 】 2042552662
【公司地址】 廣州清華科技園創(chuàng)新基地番禺石樓鎮(zhèn)創(chuàng)啟路63號(hào)二期2幢101-3室
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神經(jīng)元的胞體（soma）在于腦和脊髓的灰質(zhì)及神經(jīng)節(jié)內(nèi)，其形態(tài)各異，常見(jiàn)的形態(tài)為星形、錐體形、梨形和圓球形狀等。胞體大小不一，直徑在5～150μm（微米）之間。胞體是神經(jīng)元的代謝和營(yíng)養(yǎng)中心。（l）細(xì)胞膜:胞體的胞膜和突起表面的膜，是連續(xù)完整的細(xì)胞膜。除突觸部位的胞膜有特異的結(jié)構(gòu)外，大部分胞膜為單位膜結(jié)構(gòu)。神經(jīng)細(xì)胞膜的特點(diǎn)是一個(gè)敏感而易興奮的膜，在膜上有各種受體和離子通道，二者各由不同的膜蛋白所構(gòu)成。形成突觸部分的細(xì)胞膜增厚。膜上受體可與相應(yīng)的病毒學(xué)物質(zhì)神經(jīng)遞質(zhì)結(jié)合。當(dāng)受體與乙酰膽堿遞質(zhì)或γ-氨基丁酸遞質(zhì)結(jié)合時(shí)，膜的離子通透性及膜內(nèi)外電位差發(fā)生改變，胞膜產(chǎn)生相應(yīng)的生理活動(dòng)：興奮或抑制。

（2）細(xì)胞核：多位于神經(jīng)細(xì)胞體中央，大而圓，異染色質(zhì)少，多位于核膜內(nèi)側(cè)，常染色質(zhì)多，散在于核的中部，故著色淺，核仁l～2個(gè)，大而明顯。細(xì)胞變性時(shí)，核多移向周邊而偏位。
（3）細(xì)胞質(zhì)：位于核的周?chē)?，又稱(chēng)核周體，其中含有發(fā)達(dá)的高爾基復(fù)合體、滑面內(nèi)質(zhì)網(wǎng)，豐富的線粒體、尼氏體及神經(jīng)原纖維，還含有溶酶體、脂褐素等結(jié)構(gòu)。具有分泌功能的神經(jīng)元，胞質(zhì)內(nèi)還含有分泌顆粒，如位于下丘腦的一些神經(jīng)元。
l）尼氏體:又稱(chēng)嗜染質(zhì)，是胞質(zhì)內(nèi)的一種嗜堿性物質(zhì)，在一般染色中島被堿性染料所染色，多呈斑塊狀或顆粒狀。它分布在核周體和樹(shù)突內(nèi)，而軸突起始段的軸丘和軸突內(nèi)均無(wú)。依神經(jīng)元的類(lèi)型和不同生理狀態(tài)，尼氏體的數(shù)量、形狀和分布也有所差別。典型的如脊髓前角運(yùn)動(dòng)神經(jīng)元，尼氏體數(shù)量zui多，呈斑塊狀，分散于神經(jīng)原纖維之間，有如虎皮樣花斑，故又稱(chēng)虎斑小體。而在脊神經(jīng)節(jié)神經(jīng)元的胞質(zhì)內(nèi)，尼氏體呈顆粒狀，散在分布。
電鏡下，尼氏體是由許多發(fā)達(dá)的平行排列前粗面內(nèi)質(zhì)網(wǎng)及其間的游離核糖體組成。
The soma of neurons lies in the gray matter and ganglia in the brain and spinal cord, and their shapes are different. Common shapes are star, cone, pear and ball. Cell body size varies between 5 ~ 150μm (microns) in diameter. The soma is the neuronal metabolic and nutritional center. (L) Cell membrane: membrane of the cell body and the membrane surface of the protrusion, is a continuous complete cell membrane. In addition to the synaptic membrane specific structure, most of the membrane for the unit membrane structure. The neuronal cell membrane is characterized by a sensitive and easily excitable membrane with various receptors and ion channels on the membrane, each consisting of different membrane proteins. The synapses form thicker cell membranes. Membrane receptors can be associated with the corresponding virologic neurotransmitter. When the receptor and acetylcholine transmitter or γ-aminobutyric acid neurotransmitter binding, membrane ion permeability and potential difference between the membrane changes, the membrane produce the corresponding physiological activity: excitement or inhibition.

(2) nucleus: mostly located in the central nerve cell body, large and round, less heterochromatin, mostly in the medial nuclear membrane, often more chromatin, scattered in the middle of the nucleus, it is pale, nucleolus l ~ 2, large And obviously. Cells degeneration, the nuclear shift to the periphery and the deviation.
(3) cytoplasm: located around the nucleus, also known as the perinuclear body, which contains the developed Golgi complex, smooth surface endoplasmic reticulum, abundant mitochondria, Nissl body and neurofibrils, also contains lysosomes, fat brown Vegetarian and other structures. Secretory function of neurons, the cytoplasm also contains secretory granules, such as in the hypothalamus of some neurons.
l) Nisshin: also known as eosinophils, cytoplasm is a kind of basophilic substances, in the general staining of the island was dyed with alkaline dyes, mostly plaque or granular. It is located in the perinuclear and dendrites, and axons at the beginning of the shaft mound and axon are not. According to the type of neurons and different physiological states, the number, shape and distribution of Nisshin also vary. Typical such as spinal motor anterior horn motor neurons, Nisshin the largest number, was plaque, scattered between the neurofibrils, such as tiger-like plaque, it is also known as the tiger body. In the spinal ganglion neurons cytoplasm, Niger body was granular, scattered distribution.
Under electron microscopy, Nissl body is composed of many developed parallel arrangement of rough rough endoplasmic reticulum and the free ribosome in between.