What are our bones capable of? Detailed answer

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What are our bones capable of? Detailed answer

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What are our bones capable of?

The strength of normal healthy human bones is amazing. There is a saying that our bones are "twice as strong as oak", and this is not far from the truth. Bones must be strong, as they form the frame or skeleton that supports our body. Diverse in shape and size, the bones correspond to the type of animal to which they belong. Fish and small birds have tiny bones. Elephant bones weigh several hundred kilograms!

All bones are made up of the same components. The bone consists of a core, a grayish-white substance, 2/3 of which is an inorganic or mineral substance, mainly calcium phosphate. This gives the bones strength, but excess of this substance makes the bones more brittle.

The third component is organic matter. It gives the bones elasticity, which helps resist fractures. Some types of bones contain a fatty substance called bone marrow. It is an organic substance with nutritional value. There is also a small amount of water in the bones, which dries out as the body ages. When the water in the bones dries up, the composition of minerals increases, the bones become more brittle, grow together and heal more slowly.

For example, if the arm bone is broken, it must be firmly fixed at the fracture site so as to be immobile. Otherwise, you will not be able to use your hand afterwards.

Healing is facilitated by tiny cells called osteoblasts. They produce lime, which makes the bones hard and strong again. These cells also help bone growth. Other cells are called osteoclasts. They destroy old tissue and thereby promote bone growth. This double process of building and destroying goes on in the bones all the time.

Author: Likum A.

Random interesting fact from the Great Encyclopedia:

Who was the first baker?

Wherever you go in the world, from primitive tribes to the finest restaurants in big cities, you will find that people eat bread, although it may be different. Bread is wheat or rye flour made into dough and baked. The Egyptians were probably the first to bake bread around 3000 BC.

Although the Jews also baked bread in ancient times, and the Egyptians discovered yeast. With the advent of yeast, it became possible to let the dough rise. So tall loaves of bread appeared, and the Jews baked their bread with thin pancakes, flat cakes. We mostly eat bread made from wheat. After all, only wheat contains vegetable protein. When baking, this protein helps to ensure that the loaf is taller and fluffier. The bread is light and tasty. Rye flour does not have this quality, so it is often mixed with wheat flour.

We also eat biscuits, muffins, buns and the like. They are baked from wheat, corn, rice, rye, oat flour.

Cornbread, cakes, muffins are baked from cornmeal. In different countries of the world, what is commonly called "bread" is made from a variety of products. In Mexico, a tortilla is baked from corn. In Scotland, they eat a large Scotch cake - a type of fried oatmeal cake. Swedes love flat, coarse, heavy bread made from rye flour.

Jews have been celebrating Passover for a thousand years by baking an unleavened bread called matzah. It is made from flour and water mixed and baked like a cracker or waffle. This dough is not fermented, it does not contain those substances that would help it rise. In some countries peas are added to bread, in others rice, and in the Far East even acorns!

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