Basic Science Exam Module This exam must be completed in 15 minutes. Click here to start the exam Time left: 900 1. Changes in articular cartilage resulting from normal aging include all the following except superficial cartilage fibrillations Decreased stability of large proteoglycan aggregates Increased water concentration chondrocyte synthetic activity is decreased Increased crosslinking of collagen(Question 1 of 10)2. What is the main component of articular cartilage? water lipids collagen proteoglycans (Question 2 of 10)3. Bone Morphoenic Protein belongs to which superfamily of molecules? VEGF Interferons TGF-beta Collagens PDGF(Question 3 of 10)4. the drug that is known to cause tendinitis and tendon rupture when administered in children? Ciprofloxacin Rifampicin Pencillin Amikacin(Question 4 of 10)5. Osteoblasts found in callus around a fracture is derived from Stem cells in the connective tissue Local connective tissue Reticuloendothelial cells local migration from Bone marrow of the exposed medulla Mononuclear white cells derived from fracture hematoma Endothelial and perithelial cells of invading capillaries(Question 5 of 10)6. The following factor increases the rigidity of an external fixator except: Increased diameter of pins Increased pin number Decreased pin group separation Decreased bone-rod distance Half pins separated by 45° (Question 6 of 10)7. Bacterial growth in a biofilm or “slime layer” around an implant may be resistant to antibiotic therapy because of Poor vascular supply pH alterations Phenotypic changes in surface-adherent bacteria changing their antibiotic susceptibility bacterial van Der Waal's forces(Question 7 of 10)8. River water contamination in open fracture leads to increase risk of infection with which of the following organism? Pseudomonas Aeuriginosa Staphylococcus epidermidis Eikinella corrodens Treponema pallidum Clostridium welchi(Question 8 of 10)9. Proteoglycan content is highest in which of the following regions of articular cartilage The superficial zone The middle zone The zone of calcified cartilate The deep zone The subchondral zone (Question 9 of 10)10. What is the predominant collagen of articular cartilage and ligaments respectively? Type I and type III Type III and Type II Type IV and Type II Type II and Type I (Question 10 of 10) Loading ... Get explanatory asnwers from our book, <br /> Post Views: 5,863 Related Posts Basic Science Exam Module 2Get explanatory answers from our book, Hand Surgery Exam ModuleGet explanatory answers from our book, Spine Surgery Exam ModuleGet explanatory answers from our book,
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