Skull fortune-telling map _ skull fortune-telling map The bone on the top of the head is high.

There are 23 skulls.

Skull is the most complex part of vertebrate skeleton system, and the skull is the most front part of axial skeleton. Except the mandible and hyoid bone, other bones are firmly combined by suture or cartilage and cannot move with each other.

Skull is divided into skull and facial skull. The skull is located in the head, and there are 8 bones, such as frontal bone, parietal bone, sphenoid bone and occipital bone, to form the cranial cavity, which contains and protects the brain. The facial skull is located in the front and lower part of the head, and the oral cavity consists of 15 bones, such as nasal bone, cheekbone, lacrimal bone, maxilla and mandible. Together with the skull, it forms the nasal cavity and orbit.

Extended data:

Bone function (function)

1, protection function: bones can protect internal organs, such as the skull protects the brain: ribs protect the chest. Supporting function: bones form bones and maintain body posture.

2. Hematopoietic function: Bone marrow produces blood cells through hematopoiesis in the bone marrow cavity space between long bone and sponge bone. Storage function: bones store important minerals in the body, such as calcium and phosphorus.

3. Exercise function: bones, skeletal muscles, tendons, ligaments and joints jointly produce and transmit strength to make the body exercise. Most bones can perform all the above functions to some extent, but some bones are only responsible for a few of them.

Baidu encyclopedia-skull