The brain along with the
spinal cord makes up the nervous system which is the body control centre. This
is connected to the rest of the body by the cells called neurons. Neurons send
and receive messages between the body to the brain by using electrical and
chemical transmitters. This means that electrical impulses that correspond to a
message are passed along with the cells, and at the end of the cell these
electric impulses trigger the releases of the chemicals which move and trigger an
electric impulse in the next neuron cell. This passing along of messages is
Different types of neurons
send different messages: Sensory neurons bring messages about sensations, like
taste, touch and smell, from the relevant part of your body or to your brain.
Association Neurons are
present in large quantities in your brain. They gather the information from the
sensory, and decide what to do about it.
Motor Neurons are the third
type of neurons. They control your movement. Once the association neurons have
decided what to do about what the sensory neurons told them, the association
neurons tell this to the motor neurons, and this is how we respond to things.