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






2. Cells that proliferate rapidly (fibroblasts)






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






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






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






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






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






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






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






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






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






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






13. Drawback of micromaching






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






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






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






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






18. 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.






19. Cells that don't proliferate (neurons)






20. Keloid scars form due to disfunction of ____.






21. ______ Molecular weight degrades slower than lower MW






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






23. ____ are enzymes responsible for protein degradation.






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






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






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






27. This type of feedback creates






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






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






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






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






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






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






34. List two chemical characteristics of polymers:






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






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






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






38. 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.






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






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






41. The two types of white blood cells:






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






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






44. 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.






45. 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?






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






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






48. Thrombin activates several upstream factors.






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






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