Cells that relay information gained from the environment to the brain are called?

A nerve cell or a neuron refers to an electrically excitable cell, which processes, takes up, and conducts information via the chemical and electrical signals. It is one of the fundamental elements of the nervous system. The neurons transmit stimuli so that a human being can respond towards the environment. These are the cells found in the nervous system, which conduct information to other cells of the body.

the answer is lactic acid from anaerobic respiration. the acid in lactic acid is what creates sore and burning muscles. if you think about how acid burns that will give you a clue for questions like this.