PPT-Ossification, bone remodelling

Dr David Dora Assistant Professor 2020 February Bone formation ossification TB Intramembranous ossification osteoblasts differentiate from mesenchymal cells and replace the preexisting connective tissue Typical in flat . Features of Bone. Type one collagen fibres (Think . b. ONE. ). Periosteum. is external surface. Endosteum. lines internal surfaces. Mineral component – hydroxyapatite which is made up of calcium and phosphate. Ossification. Dr . K.Raghuveer. . Adiga. Hetrotropic. ossification was first described in 1692 by . Patin. in children with . myositis. . ossificans. . progressiva. Clearer description was provided by . Frederic Martini. Michael Timmons. Robert Tallitsch. The Skeletal System:. Osseous Tissue and Skeletal Structure. Introduction - components. The Bones - about 206. Bone tissue. , or osseous tissue, is the major component of the skeletal system.. Objectives. List types of bone. Know the function of cells involved in bone growth. Describe the two methods of bone formation in detail. Explain the factors that affect bone growth. Bone video. Bone . The Skeletal System:. Osseous Tissue and Skeletal Structure. Introduction - components. The Bones - about 206. Bone tissue. , or osseous tissue, is the major component of the skeletal system.. Bones are . Objectives. List types of bone. Know the function of cells involved in bone growth. Describe the two methods of bone formation in detail. Explain the factors that affect bone growth. Bone video. Bone . Ivyanatomy.com. Chapter 7. Osteology . is the science of bones. Bones are a living dynamic tissue: constantly remodeled through life. Functions of Bone: . Protection – brain is protected by the skull & heart and lungs by the thoracic cage. Dr . K.Raghuveer. . Adiga. Hetrotropic. ossification was first described in 1692 by . Patin. in children with . myositis. . ossificans. . progressiva. Clearer description was provided by . . Describe epiphyseal and appositional bone growth in infants, children, and adolescents.. Describe bone remodeling.. Discuss factors that affect bone growth and remodeling.. Bone Formation. D. Ossification. Fishback. Chelsea Marsh. Paulina . Cywinski. Colin . Brannagan. O’Mani. . Golston. Stephannie. . Grybet. Alec . Mackethon. What is Ossification?. The process of laying down/creating new bone.. Bones affected. In general , metabolic bone disease affects the skeleton in one of two ways : there is either too much or too little calcified bone .The latter change , which comprises the majority of metabolic bone disease , is due either to decrease in the amount of bone formed , or to excessive resorption of bone. In turn this may be due to a variety of causes but most commonly to abnormalities of vitamin D and calcium metabolism , which in turn arise from abnormality of diet or renal function , endocrine abnormalities ( particularly of the parathyroid gland) , drug therapy or poisoning .. E-mail: . a.al-nuaimi@sheffield.ac.uk. E. mail: abdulameerh@yahoo.com . Prof. . Abdulameer. Al-. Nuaimi. Limb elements arise from paraxial . mesoderm (. somites. ) . and . parietal layer of the lateral . Skeletal system . Function. B. one composition. Bone matrix has three main components:. 25% organic matrix (osteoid) : . Collagen Fibres and other proteins such as glycoprotein, osteocalcin and proteoglycans.. Bone age is an indicator of the skeletal and biological maturity of an individual. This is different from chronological age, which is calculated using the date of birth of an individual. Bone age is often requested by pediatricians and endocrinologists for comparison with chronological age for diagnosing diseases which result in tall or short stature in children. Serial measurements are also used to assess the effectiveness of treatments for these diseases. Furmulae have also been designed for computing the final adult height of children from bone age values in normal healthy children.