In the retina, which cells connect with bipolar cells to convey signals to the ganglion cells?

In the retina, which cells connect with bipolar cells to convey signals to the ganglion cells?

• A. Horizontal cells
• B. Amacrine cells
• C. Photoreceptors
• D. Retinal pigmented epithelium

Answer: (B)

Amacrine cells are the interneurons in the inner retina that form the crucial link between bipolar cells and ganglion cells. They receive input from bipolar cells and, in turn, send signals to ganglion cells, providing inhibitory or modulatory input that shapes the timing, strength, and pattern of the signal as it leaves the retina. This modulation is essential for features like contrast processing and motion detection before the information reaches the brain. Horizontal cells, by contrast, lie in the outer retina and modulate signals between photoreceptors and bipolar cells, not directly conveying information to ganglion cells. Photoreceptors feed into bipolar cells, but the final transmission to ganglion cells involves these amacrine-mediated connections.

Amacrine cells are the interneurons in the inner retina that form the crucial link between bipolar cells and ganglion cells. They receive input from bipolar cells and, in turn, send signals to ganglion cells, providing inhibitory or modulatory input that shapes the timing, strength, and pattern of the signal as it leaves the retina. This modulation is essential for features like contrast processing and motion detection before the information reaches the brain.

Horizontal cells, by contrast, lie in the outer retina and modulate signals between photoreceptors and bipolar cells, not directly conveying information to ganglion cells. Photoreceptors feed into bipolar cells, but the final transmission to ganglion cells involves these amacrine-mediated connections.