Course Hero Logo

An air liquid interface through which oxygen and

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 3 - 9 out of 15 pages.

an air-liquid interface through which oxygen and carbon dioxide mustpass is only found in pulmonary capillariese.none of the above
___b___B. The total energy of a fluid consists of contributions from all of the followingfactors EXCEPT:
___d___D. The coagulation cascade results in cleavage and crosslinking of fibrinogeninto a fibrin mesh by what enzyme:
___e___E. The bundle branches and Perkinje fibers are specialized tissues in the heartthat provide which of the following functions:
Name: _______________________________________4
3. Resistance and flow through the microcirculation (10 points)An arteriole with a 50µm radius and 1000µm length feeds into a capillary bedcontaining 500 capillaries each with a radius of 10µm and length of 500µm. The pressure ofthe blood entering the arteriole is 100 mm Hg and the pressure exiting the capillary bed is 10mm Hg. Assume that the capillaries all arise from the same point in the arteriole.A.(4 points) Calculate the total resistance of the arteriole and entire capillary bed. Assumethat the blood viscosity is 3x10-3Pa·s.B.(4 points) Determine the blood flow rate. Use the following unit conversion factor: 133.4Pa per 1 mm Hg.C.(2 points) What is the pressure at the arteriole-capillary juncture.Name: _______________________________________5
4. Exercise for a normal person and heart transplant patient (25 points)Two patients come to the laboratory to run on a treadmill while their vital signs are beingmonitored. Patient A is an entirely normal individual with no history of cardiovascular problems.Patient B had a heart transplant, but has fully recoveredEXCEPTthat the new heart is notconnected to the nervous system (sympathetic nor parasympathetic). Thus, the heart of patientB will only be mechanically coupled to the rest of the body and will not be controlled by thebrain. During exercise, the following physiological changes were noted.VariablePatient APatient BArterial pressureSlightly elevatedSignificantly decreasedVenous pressureSlightly elevatedSignificantly elevatedCardiac outputIncreases 6-foldDoublesStroke volumeDoublesDoublesHeart rateIncreases 3-foldNo changeExercise toleranceNormalAbnormalExplain the above results for both patients in words and using the four Quadrant diagramsattached. The diagrams already contain the vascular function curves and operating conditionsfor both individuals at rest. As you progress through the questions below, adjust the functioncurves if necessary and add a new dashed box that is consistent with the above information.A.(4 points)Arterial pressure. Start by placing the new cardiac output values on the Qaxis. Then write down the relationship that makes up Quadrant 2. If necessary, draw anew Quadrant 2 curve that would be consistent with the changes in arterial pressureobserved for both patients. Also add in the new operational lines. With these aspects in

Upload your study docs or become a

Course Hero member to access this document

Upload your study docs or become a

Course Hero member to access this document

End of preview. Want to read all 15 pages?

Upload your study docs or become a

Course Hero member to access this document

Term
Fall
Professor
staff
Tags
Blood vessel, venous pressure

Newly uploaded documents

Show More

Newly uploaded documents

Show More

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture