What causes lengthwise growth of a long bone?

Epiphyseal plates cause the lengthwise growth of long bone.

What is bone growth?

Bone Growth in Childhood As the bones grow, cells in the growth plate first produce more cartilage to extend the bone and then osteoblasts come in and convert the cartilage to bone in the same way that they do when bones are first formed before birth. In this way, bones continue to grow longer and longer.

What is lengthwise growth?

Lengthening of Long Bones This process replaces cartilage with bone on the diaphyseal side of the plate, resulting in a lengthening of the bone. Long bones stop growing at around the age of 18 in females and the age of 21 in males in a process called epiphyseal plate closure.

Where does lengthwise growth of bones occur?

Bones grow in length at the epiphyseal plate by a process that is similar to endochondral ossification. The cartilage in the region of the epiphyseal plate next to the epiphysis continues to grow by mitosis. The chondrocytes, in the region next to the diaphysis, age and degenerate.

What is extra bone growth called?

What is osteochondroma? Osteochondroma is an overgrowth of cartilage and bone that happens at the end of the bone near the growth plate.

What is the growth plate made of and where is it found in long bones?

Growth plates are the areas of new bone growth in children and teens. They’re made up of cartilage , a rubbery, flexible material (the nose, for instance, is made of cartilage). Most growth plates are near the ends of long bones. Long bones are bones that are longer than they are wide.

How bone grows in length and thickness?

IN SUMMARY: Bone Growth and Development Long bones lengthen as chondrocytes divide and secrete hyaline cartilage. Osteoblasts replace cartilage with bone. Appositional growth is the increase in the diameter of bones by the addition of bone tissue at the surface of bones.

What is growing end of bone?

They grow primarily by elongation of the diaphysis, with an epiphysis at each end of the growing bone. The ends of epiphyses are covered with hyaline cartilage (“articular cartilage”). The longitudinal growth of long bones is a result of endochondral ossification at the epiphyseal plate.

Where does growth in length occur?

Bone Growth Bones grow in length at the epiphyseal plate by a process that is similar to endochondral ossification. The cartilage in the region of the epiphyseal plate next to the epiphysis continues to grow by mitosis.

What is interstitial growth in bones?

Interstitial growth is a bone growth which results in the lengthening of the bone. This growth occurs within the lacunae. It happens due to the cell division in the proliferative zone and the maturation of cells in the zone of maturation. Cartilage lengthens and is replaced by bone tissue during interstitial growth.

Where does growth in length occur quizlet?

Length: Grows in length by multiplication of cells in the epiphyseal plate or cartilage. The cartilage cells divide and increase in number. The zone of active division in the epiphyseal plate lies towards the epiphyses.