MUSCLE PHYSIOLOGY

Detailed explanation-1: -The rods are photoreceptors that contain the visual pigment-rhodopsin and are sensitive to blue-green light with a peak sensitivity around 500 nm wavelength. Rods are highly sensitive photoreceptors and are used for vision under dark-dim conditions at night.

Detailed explanation-2: -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-3: -Photoreceptor function and types These cells function by sensing light and/or color and delivering the message back to the brain through the optic nerve. While cone photoreceptors detect color through bright light, rod photoreceptors are sensitive to low-light levels.