How Do We Move Our Hands ?
Lesson 3 - 30/04/07
We were introduced to a new class member today - “Bob” the skeleton. We were able to investigate the skeleton and look to see all the different bones. We then returned to our model of our hands which we had cut out last week. Today we cut up straws to match the length of each bone segment between the joints in our fingers. We then stuck these down in the correct place on the hand cut-outs. We then attached string to the fingertips and threaded it through the straws down to the wrist. The string was representing tendons. When we pulled the tendons (string) the fingers moved! It was a bit freaky! You can see some of the photos of our lesson below :
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I liked looking at Bob and seeing the bones Rachel
I thought gluing on the straws was best but messy Isla
Putting the string in the straws was really hard Tom
There are so many bones in your hand Nicole
Posted: April 30th, 2007 under school.
Comments
Comment from P3
Time May 4, 2007 at 8:54 am
We think typists, piano players, guitar players and us if we do lots of writing might get this injury. We know that tennis players can get tennis elbow.
Comment from David Gilmour
Time May 2, 2007 at 7:55 am
This is a great way to explain how tendons work, well done! Sometimes these tendons can get damaged if people do the same thing over and over again every day. This is called a repetitive strain injury, and can be really sore! What sort of jobs do you think might cause it? You’re looking at a clue to one kind of job…