Question

please check my answers

7. In the absence of light photoreceptor calcium and sodium channels are open. this true?

8. In the retina, the ganglion cell synapses directly with the bipolar cell, true?

Answer 1

7).In the absence of light photoreceptor, calcium and sodium channels are open- True.

​​​​{ In low light or dark conditions, calcium and sodium channels open, and in light conditions, the Na+ and Ca2+ channels close.These channel are cGMP gated.}

8).In the retina, the ganglion cell synapses directly with the bipolar cell- True.

{ Axons from ganglion cells are in the inner surface of the retina.These axons form the optic nerve. Dendrites of ganglion cells synapse with axons of bipolar cells in the inner plexiform layer.}