Question

Which of the following is the correct transmission of visual impulse in the retina of human eye?

• A. Bipolar cells $\to$ ganglion cells $\to$ cone
• B. Cone $\to$ ganglion cell $\to$ bipolar cell
• C. Cone $\to$ bipolar cell $\to$ ganglion cell
• D. Ganglion cell $\to$ bipolar cell $\to$ cone

Answer 1

Answer: (C)

Cone $\to$ bipolar cell $\to$ ganglion cell

As a part of the retina, bipolar cells exist between photoreceptors (rod cells and cone cells) and ganglion cells. They act, directly or indirectly, to transmit signals from the photoreceptors to the ganglion cells. Bipolar cells receive synaptic input from either rods or cones, or both rods and cones, though they are generally designated rod bipolar or cone bipolar cells.

So the correct option is 'Cone → bipolar cell → ganglion cell'.