Final answer:
Rods are the receptors associated with dim light and peripheral vision, which detect shades of gray in low-light conditions and allow for motion detection in the periphery.
Step-by-step explanation:
The receptors responsible for dim light and peripheral vision are called rods. Rods are much more sensitive to light than cones and are crucial for seeing in low-light conditions, detecting motion in the periphery, and for night vision. They exist throughout the retina, except for the very center, and provide us with black and white vision in dimly lit environments. Unlike rods, cones are responsible for color vision and are found mainly in the fovea, the central pocket of the retina.
- Rods are highly sensitive to light and essential for peripheral and nighttime vision.
- Cones are located in the central part of the retina and are responsible for color vision and detail in bright light conditions.
- There are approximately 120 million rods in the human retina.