Tuesday, November 19, 2013

Apologia Anatomy & Physiology Unit Two: Build A Spine

As we continue on the study of the Skeletal System, we discussed the spine and how absolutely perfect it is for our bodies!

Not only is it our 'backbone' and main support of our body, but it is also the conduit for our Central Nervous System. The most amazing attribute of the spine is it's flexibility. Can you imagine how hard life would be if we could not bend?

We built a model spine to demonstrate the combination of vertebrae and discs, showing how each vertebrae has a cushion and shock absorber. This combination of bone and tissue is able to bend as we move our bodies.

The girls found this pretty fascinating!

How to build your own model spine:

This is a pretty simple, quick, and easy project! For supplies, all you need is wagon wheel pasta for the vertebrae, gummy Lifesavers for the discs, and a pipe cleaner to hold it together. (We also discussed how the bundle of nerves passes through the center of the vertebrae and discs, much like the pipe cleaner runs through the middle of the pasta and gummies).

Build your 'spine' by placing gummies and pasta alternately on the pipe cleaner. Bend the ends of the pipe cleaner to keep it all in place.

Demonstrate how a spine can be straight when we are standing, but also how it can be flexible when we bend over.

The best part about this experiment? The kids love eating all the gummies once they are done!

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  1. I love this model. We are using this Apologia book in our home education group although sadly we have passed chapter two. Pinning for future reference!

    1. Thank you! It is a wonderful book, isn't it? We are really enjoying it. :-)


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