推 chiya666:TheRock真是好人 乾脆也幫我翻一段吧 XD 12/14 00:32
推 egghead:您這玩笑開大了. 12/14 01:07
推 oophs:非常感謝T大，還有謝謝其他版友.... 12/14 01:09
→ oophs:這次我是真的自己翻的...但是我知道我翻的很糟糕，所以才 12/14 01:10
→ oophs:求助於大家，真的非常謝謝 12/14 01:10
※ 引述《oophs (圈圈叉叉)》之銘言：
: 原文：
: The synapses that horizontal cells make with receptors are likewise unusual,
: lacking the electron-microscopic features that would normally tell us which
: way the information is conveyed.
: It is clear that receptors feed information to horizontal cells through
: excitatory synapses because horizontal cells,
: like re-ceptors,are in most cases hyperpolarized, or turned off, by light.
: It is less clear where the horizontal cell sends its output:
: in some species such as turtles we know that they feed information back to
: receptors;in other species they make synapses with the dendrites of bipolar
: cells and doubtless feed into them;in primates we do not have either type of
: information. In summary, horizontal cells get their input from receptors;
: their output is still uncertain, but is either back to receptors, or to
: bipolar cells, or to both.
水平細胞與受器連接的突觸也同樣不尋常：在電子顯微鏡下，它們缺乏通常可告訴我
們資訊傳遞方向的特徵。受器會透過興奮性突觸將資訊傳送給水平細胞這點是很明確
的，因為水平細胞和受器一樣，在大多情況下會被光線超極化（或關閉）。但水平細
胞在何處傳出資訊就比較不明確了。在一些如烏龜之類的物種上，我們知道水平細胞
會將資訊回傳給受器；在其他物種身上，水平細胞則以突觸和雙極細胞的樹突相連且
無疑會向其傳遞資訊；至於在靈長類身上，我們還沒看到其中任何一種資訊。總的來
說，水平細胞由受器接受輸入資訊；資訊的輸出方向則還不清楚，但如不是傳回受器
，就是傳給雙極細胞，或者就兩者都傳。
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