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Bio Engineering

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure.






2. The fibrous capsule surrounding a permanent implant is primarily composed of ___ cells and ____ (matrix).






3. Where are the tissue factors found when they're inactivated






4. _____ establishes a quantitative relationship between measured output values from an instrument and known standards of what is being measured.






5. Process that makes long fibers (fiber drawing) by forcing a fluid through an oriface.






6. The formation of rust due to corrosion in the body is due to the reaction between these 3 things ____ - ____ - and ____ .






7. Condition in which patients can literally bleed to death.






8. GPC separates molecules on the basis of size by their passage over a column packed with a porous matrix. ___ molecules pass through the column more quickly.






9. Thrombin also activates protein C-- which deactivates earlier factors in the cascade is known as ___ ___.






10. Mast cells release this






11. List two chemical characteristics of polymers:






12. Foreign body giants cells are produced by fusion of ___.






13. Classify the following polymers into appropriate families based on their bond structure i.e. the polymer is an example of poly ____.






14. High conductivity - isotropic - crystalline






15. Cells that don't proliferate (neurons)






16. Enzyme that really gets the polmerization going!






17. ____ is the process by which cells involved in inflammation internalize and destroy foreign material.






18. Higher Molecular weight degrades slower than ____ MW






19. Deformation that cannot be recovered once the load is removed from the material is ____ deformation.






20. Cardiac bypass surgery in which a vein from a patient's leg is transplanted to the patient's heart is an example of the us of ____ tissue.






21. Activates tissue factors aka endothelial damage






22. The fatigue limit is value of applied stress below which a material will not fail no matter the number of ____ applied.






23. This cleaves into fibrinogen which creates fibrin (a sticky enzyme that allows blood to clot)






24. ______ Molecular weight degrades slower than lower MW






25. Enzymes (proteins) are not activated only when they are in contact with this type of cells






26. A condensation polymerization results with an ester bond between two reactants and this comes off as a result






27. The calculation of a polymer's molecular weight (weight average and number number average) is based upon values for ____ and ___.






28. Which of polyermization (condensation/free radical) would you choose to obtain a polymer of high molecular weight?






29. What types of wound healing results from injury with inflammation?






30. Collagen ____ is responsible for the gradual gain in mechanical properties of wounded tissue between roughly 4 and 52 weeks post- injury.






31. Cells that proliferate slowly over time (aka liver)






32. No healing of damage neurons is the result of ____ cells that are not able to ____.






33. Addition polymerization is commonly initiated by ___ - atoms that have an unpaired electron.






34. Keloid scars forms because disfuntion of






35. A ____ implant is designed to elicit specific - intended to host responses.






36. Rather than randomly moving - moves in a directed cell migration manner for specific functions.






37. Type of fiber drawing that controls details of a polymer by etching on a microscopic level; thus - controlling mechanical properties as well






38. Are polymer additives used to lower glass transition temperature temperature.






39. The two types of white blood cells:






40. Thrombin activates several upstream factors.






41. Neutrophils remove bacteria/damaged cell debris from a wound site through the process of ___.






42. ____- are polymers that can be repeatedly softened by heating and hardened by cooling.






43. What type of materials are used for photolithography? (substrate is a silicon wafer - built up material is some _____ ____ )






44. Cell found in the lining of the blood vessels that release heparin and are a part of the negative feedback system.






45. The trigger for activation of enzymes (anything but endothelial cells!)






46. Polyethylene oxide grafting to biomaterials was developed to prevent coagulation by interfering with/preventing ___ ___.






47. Relative to free radical polymerization - condensation polymerization generally produces polymer of relatively ____ molecular weight.






48. Drawback of micromaching






49. The glass transition temperature of a poymer at which a polymer transforms from a ____ state to a ___ state.






50. You're working on a square polymeric implant of 5cm length and 2mm thick. You've been asked to suggest a precise way to fabricate it - what would you suggest?







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