Working with other important parts of your body, muscles perform an important task.
Learn about how they work by making a model hand with working muscles and tendons.
Make a Model Hand
What you'll need:
- A piece of card the size of your hand
- A pen or pencil
- Scissors
- String
Instructions:
- Take the piece of card and trace the outline of your hand with a pen or pencil.
- Cut out the shape of your hand with scissors.
- Cut the string into 5 pieces that are about the length of your hand.
- Tie a piece of string to the tip of each finger and thumb and stretch it to the base of the palm. Staple the string to the card at the same points where you have joints in your fingers and thumb.
- Try pulling the strings from the base of the palm, what happens?
What's happening?
The muscles in your body are
there to shorten or contract, a simple but very important task. Every
movement you make is driven by the muscular system, from a simple smile
to lifting a heavy box.
The muscles inside your
forearm have long tendons running through ligament fibers, known as the
carpal tunnel, in the wrist. These muscles allow you to flex your
fingers, bending the tips towards your palm, as your fingers do when
giving the thumbs up. This is what happens when you pull on the strings
of your model hand.
0 Comment "Model Hand Project"
Post a Comment