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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. Drawback of micromaching






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






3. Keloid scars forms because disfuntion of






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






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






6. ____ are enzymes responsible for protein degradation.






7. Process of producing new blood vessels due to a lack on oxygen and thus inducing VEGF.






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






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






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






11. Cells that don't proliferate (neurons)






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






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






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






15. Disfunction of _____ (cells) producing collagenase during the _____ phase of wound healing may form Keloid scars.






16. Keloid scars form due to disfunction of ____.






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






18. 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?






19. List two chemical characteristics of polymers:






20. ____ grafts are derived from the other humans.






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






22. Higher Molecular weight degrades slower than ____ MW






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






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






25. Two things needed in the end product of the creation of a scab






26. Enzyme that really gets the polmerization going!






27. Mast cells release this






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






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






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






31. The fatigue limit is the ___ below which the material can withstand an infinite number of cycles without failure






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






33. This type of feedback creates






34. 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.






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






36. Resulting from the build up of too much collagen at the surface of injury during the granulation tissue stage of proliferation






37. High conductivity - isotropic - crystalline






38. Is directed cell migration in response to a concentration gradient of soluble molecules.






39. Activates tissue factors aka endothelial damage






40. The two types of white blood cells:






41. Essentially all metallic biomaterials are ____ - comprised of two or more metals. One of these metals is selected for its ability to support _____ - the formation of a stable oxide layer that resists further corrosion.






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






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






44. ____ describes the ability of a device to function appropriately in the presence of blood.






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






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






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






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






49. Thrombin activates several upstream factors.






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







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