In this experiment mom used a piece of wire that had two points. We were blindfolded and had to tell mom if we could feel one or two points on the top of our hand. If the points were close together on the top of our hand we could only feel one point. Mom then moved the points wider and wider apart until we could feel both points. There are not many nerve receptors on the top of our hands and so when the points are close together, we can't feel both, it is only when they are moved further apart that another receptor can feel the point.
No matter how close the points are on our fingertips, we could always feel the two points, this is because there are much more receptors on our fingertips.
The top of our feet could also not feel two points until they were moved further apart. Not many receptors here either.
No matter how close the points are on our fingertips, we could always feel the two points, this is because there are much more receptors on our fingertips.
The top of our feet could also not feel two points until they were moved further apart. Not many receptors here either.
1 comment:
Hello Eden, Niamh and Jude,
That looks like an interesting experiment.
I hope it did not hurt.
Now you know what makes you feel if you prick your foot, or hand.
Lots of love from your nana.
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