Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> How are impulses formed in the brain?

Answer 1

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> The optic nerve carries the light impulses for sight from the retina to the brain. Retina is the most active area of the eye where the rods and cones are found. These receptors pick up the bits and pieces of the visual signals and transport them to the optic nerve for transmission to the brain.