In telecommunications, analog refers to a transmission standard that uses variable frequencies and amplitudes of electrical impulses to emulate the audio wave form of sound.

The retina is the light-sensitive layer of tissue that lines the back of the eyeball, sending visual impulses through the optic nerve to the brain. a layer of fine sensory tissue that lines the inside wall of the eye The retina acts like the film in a cam

The thin lining at the back of the eye that converts images from the eye's optical system into electronical impulses sent along the optic nerve for transmission to the brain.

The light-sensitive layer of nerve cells that lines the back of the eyeball It sends visual impulses through the optic nerve to the brain The macula is in the center of the retina and is made up of cones.

Thin tissue in the back of the eye that receives an image formed by the lens and converts it to electrical impulses carried by the optic nerve to the brain.

Located at the back of the eye, the retina's photosensitive cells convert light images into electrical impulses for the optic nerve The optic nerve sends those impulses to the visual part of the brain, where they are interpreted into what we know as 'sigh

Light-sensitive tissue at the back of the eye that transmits visual impulses via the optic nerve to the brain. the layer of light-sensitive cells lining the back of the inside of the eye; consists of rods and cones. the light-sensitive membrane covering t