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在动物眼睛最里边的视网膜上,有许许多多神经细胞,它们会把从外界接收到的信息迅速传递给大脑,形成视觉图像。视神经细胞分为两种,一种是能捕捉亮光的锥状体,一种是能捕捉暗光的杆状体。凡是视神经细胞为锥状体
On the inner retina of the animal’s innermost eye, there are many nerve cells that transmit information received from the outside quickly to the brain to form a visual image. Optic nerve cells are divided into two types: one is a cone that captures light and one is a rod that captures dark light. All optic nerve cells are conical