Table of Contents
What is the first bone formation?
Bone of the first type begins in the embryonic skeleton with a cartilage model, which is gradually replaced by bone. Specialized connective tissue cells called osteoblasts secrete a matrix material called osteoid, a gelatinous substance made up of collagen, a fibrous protein, and mucopolysaccharide, an organic glue.
What are the four stages of bone growth?
Bone turnover rates differ depending on the bone and the area within the bone. There are four stages in the repair of a broken bone: 1) the formation of hematoma at the break, 2) the formation of a fibrocartilaginous callus, 3) the formation of a bony callus, and 4) remodeling and addition of compact bone.
What is the life cycle of a bone?
Bone metabolism is a continual cycle of bone growth and resorption that is carefully orchestrated by the dynamic relationship between osteoclasts, osteoblasts and an array of hormonal and regulatory influences.
How does bone develop?
As babies grow, the cartilage in their bones grows. Over time and with a little help from calcium, bone replaces cartilage in a process known as ossification. Simply put, ossification is a process in which bone replaces cartilage.
What is the development of bone?
The terms osteogenesis and ossification are often used synonymously to indicate the process of bone formation. By the end of the eighth week after conception, the skeletal pattern is formed in cartilage and connective tissue membranes and ossification begins. Bone development continues throughout adulthood.
What is the first stage in the healing of a bone fracture formation of a hematoma?
Inflammatory phase. The inflammatory phase — also called the fracture hematoma formation — begins immediately after a fracture occurs. During this phase, bleeding and inflammation begin in the fracture site. The blood clots to form a hematoma at the bone edges, providing the framework for bone regrowth to occur.
What are the steps of bone development?
Once a young bone is formed, the growth takes place in three steps. A long bone grows in length my multiplication of cells in the epiphyseal plate of cartilage. The cartilage cells divide and increase in number. The zone of active division in the epiphyseal plate of cartilage lies towards the epiphysis (end of the bone).
What are the steps in bone formation?
The formation of bone during the fetal stage of development occurs by two processes: intramembranous ossification and endochondral ossification. Intramembranous Ossification . Intramembranous ossification mainly occurs during the formation of the flat bones of the skull, as well as the mandible, maxilla, and clavicles.
What is the timeline of bone growth?
Parts of the skeleton form during the first few weeks after conception. By the end of the eighth week after conception, the skeletal pattern is formed in cartilage and connective tissue membranes and ossification begins. Bone development continues throughout adulthood.
What are the stages of Erik Erikson?
Erik Erikson created a Psychosocial Theory that describes eight different lifespan stages that all people go through as they age. The stages are Integrity versus Despair, Generatively versus Stagnation, Intimacy versus Isolation, Identity versus Identity Confusion, Industry versus Inferiority,…