Within the retina, '''bipolar cells''' act as the signal couriers between the photoreceptors that react to light stimuli and the [[Ganglion Cell|ganglion cells]] that carry these signals out of the eye and into the cortex. Bipolar cells are so-called because they have two polar extensions that protrude from opposite ends of the [[Cell Body|soma (cell body)]]. One of these extensions extends towards the photoreceptors (connecting to either multiple rods or a single cone) while the other delivers the processed signal to the [[Dendrite#Dendritic_Arbor|dendritic arbors]] of the ganglion cells.
在视网膜里，“双极细胞”作为光感受器和神经节细胞之间的信使，负责传送眼睛外的信号到皮质。之所以称为双极细胞是因为，它们在 soma (cell body)相反的两端有延伸。其中一端延伸连接着光感受器（多个视杆细胞或一个视锥细胞），另一端则将接收到的信号传送到神经节细胞的树突。
