What Is the Facial Skeleton?

The human body has a total of 206 bones, which are connected to each other to form the human body's skeleton-bones. Divided into skull, trunk bone and limb bones. Among them, there are 29 skull bones, 51 trunk bones, and 126 limb bones.

Human skeleton

The human body has a total of 206 bones, which are connected to each other to form the human body's skeleton-bones. Divided into skull, trunk bone and limb bones. Among them, there are 29 skull bones, 51 trunk bones, and 126 limb bones.

The bones of children should actually be 217 to 218, and the bones of newborn babies are as high as 305, because children have 5 metatarsal bones, and they become 1 when they grow up. There are 4 to 5 coccyx bones in children, and 1 piece is formed when they grow up. Children have two sacrums, two ischiums, and two pubic bones, which merge into two hip bones in adults. Taken together, children have 11-12 more bones than adults.

Chinese name

Human skeleton

Foreign name

bones of the body

Classification

bone

Object

Humanity

A typical adult human skeleton includes the following 206 bones

in

Tissues contained in bones

1.

Support, protect, exercise, hematopoiesis (red bone marrow), storage of lipids and minerals (yellow bone marrow).

1

(1) Support function: different bones of the human body pass through

Human bone contains water, organic matter (bone glue), and inorganic salts. Its water content is less than other tissues, with an average of about 20 to 25%. Of the remaining solid matter, about 40% is organic and more than 60% is inorganic salt. Inorganic salts determine the hardness of the bone, while organic matter determines the elasticity and toughness of the bone. The inorganic salt portion of bone is called bone salt and includes the following components: Ca? (PO?)? 84%, CaCO? 10%, calcium citrate 2%, Mg? (PO?)? 1%, NaHPO? 2%. From these figures, it can be seen that bone salts are mainly calcium and phosphorus chemicals. They are distributed in organic matter as crystalline hydroxyapatite and amorphous calcium phosphate. Human bone is composed of 25.6% calcium (Ca) and 12.3% phosphorus (P), and its Ca / P ratio is 1.6, as well as sodium (Na), magnesium (Mg), potassium (K), and so on. It was found that other calcium agents such as chemically synthesized inorganic calcium were only calcium, and "milk-calcium" (Mil-Gel) was tested to contain 25.0% calcium (Ca) and 14.0% phosphorus (P), and the Ca / P ratio Is 1.79.

The rescue excavation of an Eastern Han tomb in Xigaoxue Village, Anfeng Township, Anyang County, Henan Province, China has become a hotly debated topic, because the owner of the tomb is likely to be a male hero of the Three Kingdoms

Skeletal deformation is generally associated with long-term incorrect postures, such as sitting, standing, and sleeping. Developing correct posture habits from an early age will help prevent bone deformation and slow down aging.