The Nervous System

A synapse is a gap in between firstly the sensory and relay neurone, synapses are managed by the vesicles at the end of a neurone which secrete chemicals that diffuse across the synapse.

Your central nervous system consists of your brain and spinal cord.

Sensory neurones carry signals from receptors to the spinal cord and brain.

A Receptor gets information from-

*your nose

*your eyes

*your skin

*your tongue

*your ears

A relay neurone passes on the signal from the sensory neurone to the motor neurone.

the motor neurone is a nerve cell that specifically controls and stimulates muscles and glands.

An effector is a muscle or gland. It is the thing that is effected by the stimulus.

The nervous system allows the body to respond to changes in the body (the stimuli)

The change is detected by receptors in our main organs. These are-

• Eyes- Light receptors
• Ears- Sound and orientation receptors
• Nose and tongue- Chemical receptors
• Skin- Tempreture and pressure
• receptors

This process involves

*Neurons are controlled by the brain, unless it's a reflex action, where it is controlled by your body.