Relacionar Columnas 1.2.7 Bone RemodelingVersión en línea Calcium feedback and steps of bone remodeling por Laura Roy 1 Osteoclast 2 Step 4 of Bone Remodeling 3 Step 1 of Bone Remodeling 4 Hypercalcemia 5 Osteoblast 6 Step 3 of Bone Remodeling 7 Calcitonin 8 Hypocalcemia 9 Step 2 of Bone Remodeling 10 Parathyroid hormone 11 Thyroid gland 12 Parathyroid Builds bone Breaks down bone Releases parathyroid hormone A hormone that lowers Ca in blood by stimulating bone to be built. Releases calcitonin Bone Remodeling - Compact bone replaces woven bone. Internal callus removed. Medullary cavity is restored High calcium levels Low calcium levels A hormone that increases Ca in the blood by stimulating bone to be broken down. Fibrocartilaginous callus formation. Connective tissue stem cells & capillary blood vessels penetrate. Phagocytes clear away junk. Cartilage and blood vessels start to form to create new bone Bony Callus Formation. Takes several weeks to months. Osteoclasts break down fibrous cartilage Osteoblasts lay new bone matrix, made of osteocytes. Bone is MOSTLY healed at this stage A hematoma is a “blood tumor” that forms at the site of the break This painful, swollen area fills with blood from the broken blood vessels
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