The Structure and Composition of Bones

The video tutorial explores the structure and composition of bones, using a cow skull as an example. It explains that bones are living entities containing nerves, cells, and blood vessels. The hardness of bones is due to mineral compounds, primarily calcium and phosphorus, which are essential in the diet. The video also covers the rough surface of bones, the role of the periosteum, and the importance of marrow in producing red blood cells. It concludes with a discussion on spongy bone, which, despite its name, is hard and contains many spaces.

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