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






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






3. Mast cells release this






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






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






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






7. 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.






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






9. 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?






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






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






12. Cells that don't proliferate (neurons)






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






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






15. Enzyme that really gets the polmerization going!






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






17. List two chemical characteristics of polymers:






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






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






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






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






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






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






24. Keloid scars form due to disfunction of ____.






25. Vascular endothelial growth factor is produced in response to ___ and stimulates ___.






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






27. In order to produce a blood clot - thrombin cleaves/activates ____ and ____.






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






29. Cells that proliferate rapidly (fibroblasts)






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






31. ______ Molecular weight degrades slower than lower MW






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






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






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






35. ____ is a measurement that characterizes the breadth of the distribution of a polymer's molecular weight.






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






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






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






39. This type of feedback creates






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






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






42. The two types of white blood cells:






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






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






45. Keloid scars forms because disfuntion of






46. During granulation stage of proliferation - growth factors that produce this ____(answer)_____ that function in degrading fibrin and replacing it with collagen.






47. High conductivity - isotropic - crystalline






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






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






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







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