Final answer:
The brain communicates with the body through the nervous system, and the type of sensory receptor that enables vision is a photoreceptor located in the retina. These photoreceptors perform sensory transduction, converting light into an electrical signal for the brain to interpret.
Step-by-step explanation:
The brain communicates with the rest of the body through the nervous system. The type of sensory receptor that enables you to see is called a photoreceptor. These photoreceptors are sensitive to light energy and are located in the retina of the eye. When light enters the eye, it first passes through the cornea, then the pupil, and finally through the lens, which focuses the light on the retina.
The retina contains light receptor cells that send nerve impulses to the optic nerve. The optic nerve carries these impulses to the brain, which interprets them and allows us to understand what we are seeing.
Vision and Sensory Transduction
Vision is facilitated by a process called sensory transduction where the eye's photoreceptors convert light into an electrical signal. This signal is then transmitted through the optic nerve to the brain for processing and interpretation.
Two broad types of cellular systems perform sensory transduction; one involves a sensory receptor working with a neuron, and the second type involves a sensory nerve ending that constitutes the sensory receptor.