Chicken Bone Dissection

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Chicken Bone Dissection: Structure of Bone
The skeletal system is made up of cartilage and bone. Both bone and cartilage are connective tissues, that is, they are composed of cells in a matrix with intracellular fibers. Just imagine connective tissue as a gelatin salad with grapes and coconut. The grapes would represent cells, the gelatin the support material for matrix, and the pieces of coconut the intracellular fibers. By changing the amounts of each ingredient and adding extra substances, we can produce a material that is very hard like bone and can withstand weight or softer like cartilage which can be used as a cushioning material. In this exercise, we will examine a fresh raw chicken bone to study bone …show more content…

How does spongy bone differ from compact bone? What differences did you see in the appearance of the spongy bone and compact bone? What color was the spongy bone?
Compact bone forms the outer layer of the bone and spongy bone is surrounded by the compact bone. On close examination, the compact bone had thin lines of closely packed materials making it hard to compress, while the spongy bone appeared like a network and was soft to touch. This is because spongy bone are made up of thin cells (trabeculae) separated by spaces (lacunae). For color difference, compact bone is cream colored while spongy bone is reddish in color.
2. How does cartilage differ from bone? How did each one feel when pierced with the knife?
Based on color, the cartilage was whitish in color while the bone was cream colored. The cartilage was relatively more flexible than the bone. On composition, bone is made up of calcium while cartilage is made up of hyaline materials. Upon piercing with a knife, the bone is resistant to piercing. On application of more force, it cracks and breaks unevenly as compared to the cartilage that is less resistant to piercing and was cut clean through upon application of a relatively lesser

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