Friday, April 18, 2008

Bone Dissecting

Our class dissected a chicken bone to find out how many layers we have in our bones. The first layer is periostium which is the white part of the bone. The second part of the bone is the compact bone that is the hard part of the bone. The third part is the spongy bone. The last thing is bone marrow. It makes blood cells and sends them into the veins. Those are all the parts of the bone. We thought it was just compact bone and bone marrow but we found out a lot more than we expected. To find the layers of the bone we first broke the bone in half. Then we looked inside the bone. There is some black stuff that is the bone marrow. The spongy bone looks like an orange red color. The compact bone had veins in it and is hard. The periosteum is the white part of the bone but we can not see that layer. Thanks for reading. Check out our next blog.

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