Human senses - touch
- Skin is covered with different types of receptor cells. Each type of receptor cell picks up a different feeling - pressure, pain, and temperature (hot and cold).
- When the receptor cells are activated they send electrical impulses that pass to the brain. The brain processes these impulses and we 'feel' what is around us.
- Our sense of touch varies on different areas of our bodies. Our fingertips are very sensitive to touch - the skin on our fingertips contains many receptor cells.
Some parts of our body are more sensitive than others. Pair up with a friend - make sure their eyes are shut or they are blindfolded. Using a ball point pen, lightly touch the skin on their arm. While still blindfolded, ask them to touch the same point with a different coloured pen. Do the two points match up? Test this on different areas of their body - do your results vary? Why do you think this is?
Go back to the Sensitivity page