There are 206 bones in the human body, which are connected to form the skeleton of the human body. Bones are mainly divided into three parts: skull, trunk and limbs. Among them, there are 29 skulls, 51 trunk bones and 126 limb bones.
Different bones of the human body are connected into a whole through joints, muscles, ligaments and other tissues to support the body. If human beings have no bones, they can only be a pile of soft tissue paralyzed on the ground. They can't stand or walk.
The human skeleton is like a frame, which protects the important organs of the human body and avoids the "interference" and damage of external forces as much as possible. For example, the skull protects the brain tissue, the spine and ribs protect the heart and lungs, and the pelvic bones protect the bladder and uterus. Without the protection of bones, external shocks and blows can easily damage internal organs.
Bones and muscles, tendons, ligaments and other tissues cooperate to complete human motor function. Bones provide the necessary support for movement, muscles and tendons provide the power of movement, and the role of ligaments is to maintain the stability of bones and make the movement continue continuously. Therefore, we say that bones are the basis of exercise.
Ilium is closely related to human metabolism. Bone contains a large amount of calcium, phosphorus and other organic and inorganic substances. It is a participant and regulator of inorganic salt metabolism in the body. Bones also participate in the regulation of human endocrine and affect the secretion and metabolism of hormones in the body. Bones are also related to the electrolyte balance in the body.