2. Supporting bones play an important supporting role: without strong bones, our muscles will have nowhere to be placed, and we will not be able to perform various load-bearing functions.
3. Protecting bones can protect internal organs: bones constitute a series of perfect body cavities, protecting the brain, heart, lungs and pelvic organs, so that important internal organs of the human body can work safely for us in a solid body cavity.
4. Moving bones is the key to complete the motor function. Only with healthy bones, joints and muscles can we move freely and our life be full of vitality. Otherwise, our hearts are far away and our bodies are still.
5. Hematopoietic bone also has a very important hematopoietic function. Because bone marrow is rich in red bone marrow, it participates in hematopoiesis in the body. After 5 years old, red bone marrow is gradually replaced by fat and becomes yellow bone marrow. However, when the human body needs it, yellow bone marrow can also be transformed into red bone marrow, which can restore hematopoietic capacity and help the body tide over the difficulties.
6. Reserve mineral salt skeleton or mineral salt storage. Taking calcium as an example, 99% of calcium in adults is stored in bone tissues and teeth in the form of minerals, and only 1% of calcium exists in extracellular fluid and various soft tissues. We can think of bones as banks, and calcium is money. On weekdays, most paper money is kept in banks, and only a small part is circulated in cash. When the calcium content in human blood is low, bone tissue will release the stored calcium and increase the calcium content in blood to maintain calcium balance.
7. Bone is also an important endocrine organ and an organ involved in energy metabolism. Recent studies have found that bone can actively synthesize and secrete a variety of bioactive factors, such as osteopontin, fat factor, growth factor and inflammatory factor, which can not only regulate the development and metabolism of bone itself, but also remotely regulate the metabolism and function of various tissues through blood, and participate in maintaining the stability of the body. Other studies have shown that many active factors secreted by bones play an important role in the metabolism of glucose and lipid in the body. For example, it has been found that osteocalcin secreted by osteoblasts acts on islet β cells, promotes insulin secretion and participates in the regulation of blood sugar in vivo.