Lengthwise,long bone growth during infancy and youth is exclusively through ________.
A) calcification of the matrix of the zone underlying articular cartilage
B) interstitial growth of the epiphyseal plates
C) differentiation of osteoclasts into osteocytes
D) the secretion of bone matrix into the medullary cavity

Question

Quizplus · Accepted Answer

Long bone growth during infancy and youth is exclusively through interstitial growth of the epiphyseal plates. These plates are made up of cartilage and located at the ends of the long bones. As a child grows, chondrocytes (cartilage cells) in the plates divide and push the bone away from the center. This results in lengthwise bone growth. Once growth is complete, the epiphyseal plates will ossify and form epiphyseal lines.

Lengthwise,long Bone Growth During Infancy and Youth Is Exclusively Through