| ¿µ¹® | neuron | ÇÑ±Û | ´º·±, ½Å°æ¿ø |
|---|---|---|---|
| ¼³¸í | ÇϳªÀÇ ½Å°æ¼¼Æ÷¸¦ À̸¥´Ù. ½Å°æ¼¼Æ÷ÀÇ ±¸Á¶´Â ¿Ã¹Ù¸¥ ½Å°æÀü´ÞÀ» À§ÇÑ °¢ ºÎºÐº°·Î ³ª´µ¾îÁ® ÀÖ´Ù. Áï À§¿¡¼ ÀüÇØÁ® ³»·Á¿À´Â ½Å°æÀÚ±ØÀº °¡Áöµ¹±â¸¦ ÅëÇØ ¹Þ¾ÆÁ®¼, ±× ½Å°æ¼¼Æ÷ ¸·À» µû¶ó Àü±âÀû ÀÚ±ØÀ¸·Î ¹Ù²î¾îÁ® ³»·Á°¡°Ô µÈ´Ù. ¼ö»óµ¹±â¿¡¼ ¼¼Æ÷ü, ±×¸®°í Ãà»èÀ¸·Î °Ç³»¾îÁ® ½Å°æÁ¾¸»¿¡ À̸£·¯ ±ÙÀ°À̳ª, ȤÀº ´Ù¸¥ ½Å°æÁ¶Á÷À¸·Î Àü´ÞµÇ¾î Áö´Â °ÍÀÌ´Ù. À̶§ Ãà»èÁÖÀ§¿¡´Â Àý¿¬Ã¼ÀÎ ¸»ÀÌÁý(myelin sheath)°¡ µÑ·¯½Î¿©Á® ÀÖ°í °¢ ¼öÃÊ»çÀÌ¿¡´Â ÀýÈçÀÌ Á¸ÀçÇϴµ¥ À̰ÍÀ» ¶õºñ¿¡ °áÀý(Ranvier's node)À̶ó ºÎ¸¥´Ù. ½Å°æÀü´ÞÀÌ »¡¸® ÀÌ·ç¾îÁöµµ·Ï ÇϱâÀ§ÇØ °íµî»ý¹°¿¡ Á¸ÀçÇÏ´Â ¶õºñ¿¡ °áÀýÀº ÀÌ °áÀýµé»çÀ̷θ¸ ½Å°æÀü´ÞÀÌ ÀÌ·ç¾îÁ® º¸´Ù ºü¸¥ Àü´ÞÀÌ ÀϾÙ. ½Å°æ¼¼Æ÷ÀÇ ºÐ·ù´Â ÁÖ·Î ±â´ÉÀ̳ª, ȤÀº ±× Àü´ÞÀÇ ¹æÇâ¿¡ µû¶ó ºÐ·ùÇÏÁö¸¸, ¸»ÃʽŰæÁß Áß¿äÇÑ ½Å°æÀ̳ª, ÁßÃ߽ŰæÀº °¢±â ±× ¸íĪÀÌ Á¤ÇØÁ® ÀÖ´Ù. Áï, ¡°¿îµ¿½Å°æ(¿îµ¿À» ´ã´çÇÏ´Â ½Å°æÁ¶Á÷. ÁÖ·Î »çÁö¸»´Ü¿¡ ºÐÆ÷ÇÑ´Ù)¡±, ¡°°¨°¢½Å°æ(°¨°¢À» ´ã´çÇÏ´Â ½Å°æÁ¶Á÷À¸·Î Åë°¢, ¿Âµµ°¨°¢, Ã˰¢ µîÀ» ³ú·Î Àü´ÞÇØÁÖ´Â ¿ªÇÒÀ» ÇÑ´Ù)¡± µîÀ¸·Î ºÒ¸®¿öÁö°Å³ª, ¶Ç´Â ¡°µé½Å°æ(¹Û¿¡¼ ¾ÈÀ¸·Î À¯ÀԵȴٴ ¶æÀ¸·Î ÁÖ·Î °¨°¢½Å°æÀ» ¶æÇÑ´Ù)¡± ¡°³¯½Å°æ(¾È¿¡¼ ¹Ù±ùÀ¸·Î ÀÛ¿ëÀ» °¡ÇϱâÀ§ÇØ ³ª°£´Ù´Â ¶æÀ¸·Î ÁÖ·Î ¿îµ¿½Å°æÀ̳ª ÀÚÀ²½Å°æÀ» ¶æÇÑ´Ù)¡±µîÀ¸·Î ºÒ¸®¿ö Áö°í, Áß¿äÇÑ ½Å°æÀÎ °æ¿ì´Â Á¤°½Å°æ, Á¾¾Æ¸®½Å°æ µîÀ¸·Î °íÀ¯¸íĪÀÌ ºÙ¿©Á® ÀÖ´Ù ½Å°æ¼¼Æ÷¸¦ ÀÌ·ç°í ÀÖ´Â ¸ðµç ºÎºÐ¿¡¼ ÀÌ»óÀÌ ³ªÅ¸³¯ ¼ö ÀÖÀ¸¸ç, À̶§ ½Å°æÃ¼³ª ȤÀº ½Å°æÇÙÀÇ ¼Õ»óÀº ÁßÃ߽Űæ°è(ÁÖ·Î ³ú¿¡¼ Á÷Á¢ ºÐÁöµÇ¾î ³»·Á¿Â ½Å°æÀ» ¸»ÇÔ)¿¡¼´Â Àç»ýµÉ ¼ö ¾øÀ¸¸ç, ÁÖÀ§ ¼öÃÊ µî¿¡ ÀÇÇÑ º´ÅÍ¿¡¼´Â Àç»ýÀÌ °¡´ÉÇÏ´Ù. |
||
| LMN | Lower Motor Neuron |
|---|---|
| NSE | Neuron Specific Enolase |
| UMN | Upper Motor Neuron |
| FC | fasciculus cuneatus; fast component [of a neuron]; febrile convulsions; feline conjunctivitis; ferri... |
| GCN | geometric constraint network; giant cerebral neuron |
| EMND | Equine motor neuron disease |
|---|---|
| LMND | Lower Motor Neuron Disease |
| MNDs | motor neuron disease |
| Mnd | Motor neuron degeneration |
| Ng-CAM | Neuron-glia cell adhesion molecule |
| unmyelinated | Denoting nerve fibres (axons) lacking a myelin sheath. Synonym: amyelinated, amyelinic, nonmedullated, nonmyelinated, unmedullated. (05 Mar 2000) |
|---|---|
| unmyelinated fibres | A fibre having no myelin covering (CNS); a naked axon; in the PNS represented by all axons lying in troughs in a single Schwann cell (Schwann cell unit); a slow conducting fibre. Synonym: gray fibres, nonmedullated fibres, Remak's fibres. (05 Mar 2000) |
| unmyelinated nerve | <anatomy, nerve> A nerve made up largely, or exclusively, of unmyelinated fibres; a nerve composed of axons having no myelin covering, but lying in troughs in Schwann cells; a slow conducting nerve. (05 Mar 2000) |
| autonomic motor neuron | See: motor neuron. (05 Mar 2000) |
| bipolar neuron | A neuron that has two processes arising from opposite poles of the cell body. (05 Mar 2000) |
| magnocellular neuron | <anatomy, neurology> A neuron in the magnocellular region of the brain. Perhaps the first class of neuron from the central nervous system shown to be sensitive to nerve growth factor (that had previously been thought only to act at the periphery). (18 Nov 1997) |
| ganglionic motor neuron | See: motor neuron. (05 Mar 2000) |
| Mauthner neuron | <biology, marine biology> Large neuron in the mesencephalon of fishes and amphibians. A rare example of an individually identifiable neuron in a vertebrate nervous system. (18 Nov 1997) |
| visceral motor neuron | See: motor neuron. (05 Mar 2000) |
| cell adhesion molecules, neuron-glia | Cell adhesion molecules that mediate neuron-neuron adhesion and neuron-astrocyte adhesion. They are expressed on neurons and schwann cells, but not astrocytes and are involved in neuronal migration, neurite fasciculation, and outgrowth. Ng-cam is immunologically and structurally distinct from ncam (neural cell adhesion molecules). (12 Dec 1998) |
| Golgi type II neuron | <physiology> Nerve cells with short axons which ramify in the gray matter. (05 Mar 2000) |
| Golgi type I neuron | <physiology> Nerve cells whose long axons leave the gray matter of which they form a part. (05 Mar 2000) |
| cholinergic neuron | <physiology> Neurons in which actylcholine is the neurotransmitter. (15 Jan 1998) |
| piriform neuron layer | The layer of Purkinje cells between the molecular and granular layers of the cerebellar cortex. Synonym: stratum neuronorum piriformium, ganglionic layer of cerebellar cortex, layer of piriform neurons, Purkinje's layer, stratum gangliosum cerebelli. (05 Mar 2000) |
| motor neuron | Synonym for motoneuron. (18 Nov 1997) |
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