Where does interstitial growth of a long bone occur?
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.
What is interstitial bone growth?
The longitudinal growth of bone is a result of cellular division in the proliferative zone and the maturation of cells in the zone of maturation and hypertrophy. This growth within a tissue is called interstitial growth.
What causes long 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. The chondrocytes, in the region next to the diaphysis, age and degenerate.
What are the stages of long bone growth?
These stages included limb-bud formation with uniform distribution of mesenchymal cells and formation of an apical ectodermal ridge (stage 1); mesenchymal condensation (stage 2); cartilage differentiation (stage 3); formation of a primary center of ossification (stage 4a); epiphyseal cartilage vascularization with …
What feature of bone is involved in growth in bone length?
The Epiphyseal Plate and Growth in Length of a Bone. The power to increase the length of a bone is concentrated in the cartilaginous epiphyseal plates located near each end of the bone. These plates are situated between the shaft of the bone and the secondary ossification centers within the epiphyses.
What does appositional bone growth require?
Appositional growth is the increase in the diameter of bones by the addition of bony tissue at the surface of bones. Osteoblasts at the bone surface secrete bone matrix, and osteoclasts on the inner surface break down bone. The osteoblasts differentiate into osteocytes.
Which of the following best describes interstitial growth of cartilage?
Which of the following statements best describes interstitial growth of cartilage? Chondrocytes in the lacunae divide and secrete matrix, allowing the cartilage to grow from within.
What disease causes bone growth?
Fibrodysplasia ossificans progressiva (FOP) is a debilitating disorder that leads to heterotopic ossification (HO), an abnormal process in which extra bone develops outside the skeleton in soft tissues, such as muscles, tendons and ligaments.
What are long bones?
A long bone is a bone that has a shaft and 2 ends and is longer than it is wide. Long bones have a thick outside layer of compact bone and an inner medullary cavity containing bone marrow. All of the bones in the arms and legs, except the patella, and bones of the wrist, and ankle, are long bones.
Which part of a long bone surrounds a cavity of marrow?
medullary cavity
The periosteum is a layer of fibrous tissue that covers the bone. Compact bone is the dense, hard, smooth outer part of a bone. It surrounds the medullary cavity and contains blood vessels and nerves. The medullary cavity is the hollow part of bone that contains bone marrow.