Assuming you mean the part of the eye responsible for seeing color... There are two types of photoreceptors in the retina: rods and cones. The cones are responsible for seeing color. (The easy way to remember it is cones and color start with c.).
The vagus nerve runs throughout the body and is responsible for the function and regulation of several bodily systems such as the heart and digestive tracts. The vagus nerve is one of the largest nerve systems in the body.The name vagus is Latin for wandering, which describes the long and complicated path this nerve takes through the body and all of the different systems it comes in contact with.he vagus nerve is one of the largest nerve systems in the body. The name vagus is Latin for wandering, which describes the long and complicated path this nerve takes through the body and all of the different systems it comes in contact with.
In fact, 80-90% of the nerve fibers in the vagus nerve are dedicated to communicating the state of your viscera up to your brain. Vagus Nerve in Yellow . The vagus nerve helps manage the complex processes in your digestive tract, including signaling the muscles in your stomach to contract and push food into the small intestine. A damaged vagus nerve cannot send signals to your stomach muscles.