BME121_Final_2013_solution.pdf - BME 121 Quantitative...

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BME 121Quantitative Physiology: Organ Transport SystemsFinal ExamWinter 2013March 19thName: _______________________________ID #:_______________________________I attest that I am registered for this course and am the person listed above.Signature: ____________________________1
1. True or False with short answer justification (20 points, 4 points each)Read each question carefully, answer true or false (1 point), AND justify answer in 1-2sentences (3 points)A.The function of the kidneys is to eliminate all small components (< 70,000 daltonmolecular weight) in the blood by ultrafiltration in specialized tissues called nephrons.
B.Oxygen and carbon dioxide transport in pulmonary capillaries is perfusion-limited.Increasing the solubility of each gas in blood (βb) would make transport less perfusion-limited.
C.Proteins greater than ~7 nm cannot pass through tissue capillaries into the interstitialspace even if intercellular clefts are present.
D.The circulatory beds feeding different organs in the body are arranged in parallel so thatblood flow can be controlled to each organ without affecting the others significantly.
E.Shear stress represents the transfer of momentum in the direction perpendicular to flow,which is directly proportional to the shear rate for all fluid types including blood.
Name: _______________________________________2
2. Multiple Choice (20 points, 4 points each)Read each question carefully and write the most appropriate answer in the space provided___b___A. The following are all key anatomical or functional differences between tissueand pulmonary capillaries EXCEPT:
Name: _______________________________________3
___d___C. Starling’s Law states that the fluid filtration rate out of a tissue capillarydepends on:

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Term
Fall
Professor
staff
Tags
Blood vessel, venous pressure

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