AP PSYCHOLOGY

Detailed explanation-1: -A baby’s body has about 300 bones at birth. These eventually fuse (grow together) to form the 206 bones that adults have.

Detailed explanation-2: -The baby skeleton has more bones and cartilages. During development many of these cartilages become bones by the process called ossification and some bones fuse to form a bigger bone reducing the number of bones to 206.

Detailed explanation-3: -This is because babies have more cartilage than bone. New born babies have around 305 bones. A baby’s skeleton is mostly made up of cartilage.As a person grows up, most of this cartilage turns into bone in a process called ossification.By adulthood, the skeleton has just 206 bones.

Detailed explanation-4: -The osteoid density of a child’s bone is less than an adult’s. Juvenile bone is more porous than adult bone because the Haversian canals occupy a much greater part of the bone (Figure 4). This is the principal reason a child’s bone can bend more than an adult’s bone.

Detailed explanation-5: -There are three hundred bones in children. That changes as they reach adulthood.