Monday 2 January 2017

What does it mean to have an opposable thumb?

Fingers and toes are called digits. The thumb is the shortest, thickest digit on the human hand and moves in a different direction than the other digits. Human thumbs are called opposable thumbs. They are called opposable because the thumb can be moved around to touch the other fingers, which gives people the ability to grasp things.



How Important Is Your Thumb?

Activities to Try Without Your Thumb


1. Write your name with a pencil
2. Put on a sock and shoe
3. Open a door using a knob
4. Brush or comb your hair
5. Button a button
6. Tie a shoelace
7. Blow up a balloon and tie it
8. Seal a plastic bag 
9. Pull up a zipper
10. Pick a coin up off a flat surface 
11. Brush your teeth
12. Open a jar

Can you think of another activity that would be impossible (or really hard) to do without your thumbs?


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