These move towards the central nervous ... system. Receptors are groups of specialised cells. They detect a change in the environment and stimulate electrical impulses in response. Sense organs ...

The conditions are controlled in two ways with chemical and nervous responses. A bundle of neurones is called a nerve. There are three main types ... the central nervous system or CNS.

The vagus nerve is the key player in the autonomic nervous system controlling your internal organs. The vagus nerve is a major pathway of the parasympathetic nervous system, which, along with the ...