ANATOMY

Detailed explanation-1: -Rod and cone photoreceptors are specialized neurons that function in the initial step of vision. These light-sensitive cells lie at the back of the retina adjacent to the retinal pigment epithelium (RPE), a cell layer that is vital for the survival of photoreceptors.

Detailed explanation-2: -5 Electromagnetic Receptors. Photoreceptors are specialized neurons found in the retina that convert light into electrical signals that stimulate physiological processes. Signals from the photoreceptors are sent through the optic nerve to the brain for processing.

Detailed explanation-3: -These specialized cells are called photoreceptors. There are 2 types of photoreceptors in the retina: rods and cones. The rods are most sensitive to light and dark changes, shape and movement and contain only one type of light-sensitive pigment.

Detailed explanation-4: -There are four photoreceptor types in the human retina. Short-wavelength cones (blue), medium-wavelength cones (green), long-wavelength cones (red) and rods..