Basic Science Exam Module This exam must be completed in 15 minutes. Click here to start the exam Time left: 900 1. What is the predominant collagen of articular cartilage and ligaments respectively? Type II and Type I Type III and Type II Type IV and Type II Type I and type III (Question 1 of 10)2. Osteoblasts found in callus around a fracture is derived from Local connective tissue Reticuloendothelial cells Endothelial and perithelial cells of invading capillaries local migration from Bone marrow of the exposed medulla Mononuclear white cells derived from fracture hematoma Stem cells in the connective tissue(Question 2 of 10)3. Bacterial growth in a biofilm or “slime layer” around an implant may be resistant to antibiotic therapy because of Phenotypic changes in surface-adherent bacteria changing their antibiotic susceptibility Poor vascular supply pH alterations bacterial van Der Waal's forces(Question 3 of 10)4. What is the main component of articular cartilage? proteoglycans lipids collagen water (Question 4 of 10)5. River water contamination in open fracture leads to increase risk of infection with which of the following organism? Pseudomonas Aeuriginosa Treponema pallidum Clostridium welchi Staphylococcus epidermidis Eikinella corrodens(Question 5 of 10)6. Proteoglycan content is highest in which of the following regions of articular cartilage The middle zone The deep zone The superficial zone The subchondral zone The zone of calcified cartilate (Question 6 of 10)7. Changes in articular cartilage resulting from normal aging include all the following except Decreased stability of large proteoglycan aggregates chondrocyte synthetic activity is decreased Increased crosslinking of collagen Increased water concentration superficial cartilage fibrillations(Question 7 of 10)8. The following factor increases the rigidity of an external fixator except: Half pins separated by 45° Increased diameter of pins Increased pin number Decreased pin group separation Decreased bone-rod distance (Question 8 of 10)9. the drug that is known to cause tendinitis and tendon rupture when administered in children? Pencillin Amikacin Rifampicin Ciprofloxacin(Question 9 of 10)10. Bone Morphoenic Protein belongs to which superfamily of molecules? Interferons PDGF VEGF Collagens TGF-beta(Question 10 of 10) Loading ... Get explanatory asnwers from our book, <br /> Post Views: 6,275 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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