The central nervous system consists of the brain and spinal cord. The central nervous system controls thought, movement, and emotion, as well as breathing, heart rate, hormones, and body temperature.

The conditions inside our body must be carefully controlled if the body is to function effectively. The conditions are controlled in two ways with chemical and nervous responses. A bundle of neurones ...

The nervous system controls the activities of all body organs and tissues, receiving input from sensory organs and responding via effector organs. With around 100Â billion interconnected neurons, the ...