Bone Fractures and Remodeling

Match The Bone Fracture With Its Description Closed broken bones that remain within the body and do not penetrate the skin Open broken bones that penetrate through the skin and expose the bone and deep tissues to the exterior environment Transverse form perpendicular to the long axis of a bone and are the result of a force applied at a right angle to the bone Spiral result of an extreme twisting force being exerted on a bone Comminuted severe fractures that involve the breaking of a bone into several smaller pieces Impacted a break where the ends of bones are driven into each other Greenstick breaks in bones along only one side of the bone caused by a force perpendicular to the bone’s long axis (bone tends to bend and only partially break instead of breaking completely) Oblique slanted fractures that occur when a force is applied at any angle other than a right angle to the bone A compound fracture describes The broken part of the bone protruding through the skin. A partial fracture of a bone occurring in children only. The broken bone penetrates organs around it. A bone broken in two or more places. Which type of fracture is most common in children? impacted greenstick comminuted spiral Which type of fracture is most common in the elderly? impacted greenstick comminuted spiral Which type of fracture is most common in sports injuries? impacted greenstick communited spiral Which of the following would be considered the most severe type of bone break? Greenstick Comminuted Spiral Transverse Label the X-Ray Images With Their Bone Fracture Types comminuted greenstick impacted open spiral transverse spiral impacted transverse comminuted open greenstick Complete the table below by matching the descriptions to each type of bone cell. Osteoclast on surfaces of old bone breakdown old bone tissue Osteoblast form new bone tissue synthesis extracellular matrix found in growing portions of bone Osteocyte maintain normal bone structure by recycling mineral salts in matrix inside lacunae surrounded by calcified bone Osteogenic (cell) undifferentiated bone stem cell; highly active divide to produce new bone cells in deep layers of periosteum and bone marrow The paragraph below describes the steps of the remodeling process. Click on the black and select the word that correctly completes to each sentence. The first step of bone remodeling is resorption where the old bone is broken down and reabsorbed by osteoclasts. The immune system macrophages arrive to create an intermediate reversal step. The next step is that of formation where osteoblast precursors arrive, divide and grow into mature osteoblasts and secrete new bone matrix. Bone matrix then undergoes mineralization to create new, strong bone. Bone finally enters the resting stage and is maintained by inner osteocytes and protective lining cells. Select the option that places these bone reconstruction steps in order. ABCDE BCDEA BEDAC CDBEA