SKELETAL SYSTEM:

What are the bones of the axial and appendicular skeleton?

The axial skeleton forms the vertical axis of the body and includes the bones of the head, neck, back, and chest of the body. It consists of 80 bones that include the skull, vertebral column, and thoracic cage. The appendicular skeleton consists of 126 bones and includes all bones of the upper and lower limbs.



FUNCTIONS OF BONES:





FORMATION OF BONE:
Bone formation, also called ossification, process by which new bone is produced. Ossification begins about the third month of fetal life in humans and is completed by late adolescence.

PARTS OF YOUNG BONE




BLOOD SUPPLY OF LONG BONE
In a typical long bone, blood is supplied by three separate systems: a nutrient artery, periosteal vessels, and epiphyseal vessels.