Test your basic knowledge |

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. Activates tissue factors aka endothelial damage






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






3. 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?






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






5. The two types of white blood cells:






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






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






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






9. Thrombin activates several upstream factors.






10. Higher Molecular weight degrades slower than ____ MW






11. Drawback of micromaching






12. ______ Molecular weight degrades slower than lower MW






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






14. 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.






15. High conductivity - isotropic - crystalline






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






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






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






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






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






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






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






23. Cells that don't proliferate (neurons)






24. ____ are enzymes responsible for protein degradation.






25. Cells that proliferate rapidly (fibroblasts)






26. Keloid scars form due to disfunction of ____.






27. 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.






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






29. 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.






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






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






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






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






34. Damaged cells at the site of injury (mast cells) release ___ (glycosaminoglycan).






35. Mast cells release this






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






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






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






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






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






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






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






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






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






45. ____ binds to anti- thrombin III (thrombin inhibitor) and increases its potency 1000- fold.






46. The process of calibration establishes a quantitative relationship between ____ __ ___ _____ and the direct output of the intstrument (for example time/volume in GPC).






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






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






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






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