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.
You can close this video in 5 seconds. 9 Nervy Facts About the Vagus Nerve. What happens in the vagus nerve, it turns out, doesnât stay in the vagus nerve. The longest of the cranial nerves, the vagus nerve is so named because it âwandersâ like a vagabond, sending out fibers from your brainstem to your visceral organs. The vagus nerve is literally the captain of your inner nerve centerâthe parasympathetic nervous system, to be specific.