Walking home after the lecture on the visual system, a student is thinking about what he has heard when he realizes that he has forgotten which type of cells carry visual information to the brain and which type of cells spread the signal within the retina. When he gets home and opens up his book, he will find out that

Question

Quizplus · Accepted Answer

Ganglion cells are responsible for sending visual information to the brain via the optic nerve. Horizontal and amacrine cells play roles in lateral communication within the retina, helping to integrate and regulate the input from multiple photoreceptor cells before it is transmitted to the brain.  The axons of the ganglion cells make up the optic nerve, which carries visual information out of the eye to the brain. The horizontal and amacrine cells integrate information across the retina. Horizontal cells connect receptors to each other. Amacrine cells link bipolar cells to other bipolar cells and ganglion cells to other ganglion cells. Neither the horizontal nor the amacrine cells send signals to the brain.

Walking Home After the Lecture on the Visual System, a Student