Question

Rods and cones form synapses with which of the following cells?

(A) Amacrine
(B) Bipolar
(C) Ganglion
(D) Muller

Answer 1

Rods and cones form synapses with bipolar cells in the retina. These bipolar cells transmit signals to retinal ganglion cells, and amacrine cells contribute to image processing.

Step-by-step explanation:

Rods and cones in the retina form synapses with bipolar cells. These bipolar cells are then responsible for transmitting signals to retinal ganglion cells (RGCs). Amacrine cells also play a role in this process by connecting to the bipolar cells near the outer synaptic layer and providing the basis for early image processing within the retina.

Eventually, RGCs generate action potentials that travel through their axons which form the optic nerve, thereby conveying visual information to the brain.

Answer 2

Rods and cones in the retina primarily form synapses with bipolar cells, which then connect to retinal ganglion cells. The axons of these ganglion cells make up the optic nerve. B is the correct option.

Step-by-step explanation:

In the retina, rods and cones form synapses predominantly with bipolar cells. The photoreceptors (rods and cones) modify their membrane potential in response to light, which impacts the neurotransmitter release onto bipolar cells in the outer synaptic layer.

Bipolar cells are the intermediary cells that connect photoreceptors to retinal ganglion cells (RGCs) in the inner synaptic layer.

Contrary to the connections formed by rods and cones, it is the axons of the RGCs that merge at the optic disc to form the optic nerve.