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






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






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






4. Mast cells release this






5. Cells that don't proliferate (neurons)






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






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






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






9. The two types of white blood cells:






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






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






12. 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.






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






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






15. ______ Molecular weight degrades slower than lower MW






16. 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.






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






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






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






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






21. Activates tissue factors aka endothelial damage






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






23. Keloid scars forms because disfuntion of






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






25. Thrombin activates several upstream factors.






26. Higher Molecular weight degrades slower than ____ MW






27. This type of feedback creates






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






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






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






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






32. Keloid scars form due to disfunction of ____.






33. 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.






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






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






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






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






38. Cells that proliferate rapidly (fibroblasts)






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






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






41. 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?






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






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






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






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






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






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






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






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






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