Receptors in your skin sense different types of touch and send signals to your brain so that you feel your surroundings.
The nose detects odour molecules in the air and sends signals to the brain so that you can smell them.
Eyes detect light and send signals to the brain, which produces moving images of your surroundings.
Ears detect sounds and send signals to the brain, which identifies them as sounds you can hear.
The tongue’s taste buds detect taste molecules in food and send signals to the brain so that you taste what you’re eating.