PHYSIOLOGY4521552 EXAMINATION II Thursday March 30 2006 INSTRUCTIONS This examinationconsistsofl multiple choiccquestions Pleaseprint your 494q9 and E4 dt IfE p9 q4 u4bCI correspondingcircleson the answersheet clearly on the answer sheet Fill in Pleasemark your answcrscarcfully on ihe answersheetwith a 2 pencil IMPORTANT NOTE IF YOU ERASE DO SO COMPLETELY Thereis only one best answer for eachquestion This examconsistsof pagcs includingthis coverpage and35 questions Pleasecheckthat your copy has all pages All questionscarry equalweight readthe questionscarefully You may keepthe examinationfor study Alllglqwill be postedas soonaspossibleon UBl earns Be sureto makea list of your answersbeforc leavingthc cxam room so that you can eradevourselfon this exam TURN OFF ALL CELL PHONES ANYONE WHO ANSWERSA CELL PHONEDURING THE EXAM WILL RECEIVE A ZERO O FOR THE EXAM CHEATING ON EXAMS ln an efforl to decreasethe temptation to cheat on hourly and final exams we ask that you follow the procedureslistedbelow l 2 3 4 5 Keepyour answersheeteqIglgd exceptwhen addingan answer Whcn creatinSyour own list of answersto chcck aSainstthe key pleasewrite small and be as discreteas Dossible Pleaseinform one of the instructorsas soon as possibleif you suspectsomeoneis cheating Your commentswill be kept confidential Rememberthat accordingto Universitypolicy a persongiving answersis equallyas guilty as a personreceivinganswers The ultimate penalty for cheating is dismissal from the University The versionof YOUR exam is VERSION 1 On sidetwo of your answersheet scantron thereis a Gradeor Education box below the Identificationbox wherc you add your studentnumber In this Gradeor Education box fill in circle 1 If you do not add your examversionyou will receive a zero 0 for this exam If you fill in the WRONG number you will be scoredfor the numberyou g iir i r r l u For questions1 12 useanswer 1A ifthe ENTIRE statementis TRUE and B if l ANrYPARTof thestatement is FALSF ll f rtr V 1 An individual will havea normalFEVr FVC ratio after tmnsectionof the spinal cord at the first lumbar evel L1 L 09 2 In bothanemiaandcrrbonmono idepoi oning4 will increasemarkedlyto cumpenssle lor lhe decrea ern aul i l 1 r i i l c U 3 The Zrlp ratiobecomcslcssthan1in areasofthelungwithpoorlentilation LAs bloodpasscs rhroughrhepulmogulg laries carbonrc anhydrase cataly e5 the conversionof Cqlqrd Or to Fl COr in thc red blood cclls i Yll 7 jlt Iftotal lung capacity TLC and resiclualvolumeB staythe sameanclthe inspiratorycapacity lC increasesthen the expira6ifresirve volume nn wiff fl J decrease l IJ At residual volume the force causing the chest wall to expand is greater than the e forcecausing the lung to collapse J 1 h Y 7 If a patienthas alow lung coi ilance thenbqll1e mostlikely will be breathing with a lower than normaltidal lums 16 higherfrequencyofbrealhlng 8 As bloodpasses throughpulmonary capillaries the pHincrea5s5 LO y Uart 9 Duringheavyqleleise up to15 volo of 02 canbe extracted from bloodtlowing I capillarics of skeletal muscle through the systemic 7 Tfl i zr i1 II Sysrcm hypeflenliS hjct blgo pre uE te bgjeluusdblqlggqC angiotensil congxling gnzyme ACE in the pulmonary capillaries and also by blockingangioregsfifl receptors in ri suessuppliedb thesyslemiccirculalron I in the I l FRCincreases in patientswiti emphysema beciuseoJtheslow dccrease rE 6ilpressure ofthe lulg evel manyyears r t r r ela tic u 12 More orl i requireLl to overcome the fibers of rhelunglhen urfrce ffi l lensron dunnginsprration at restin a normxlperson aj ffr vt 1 l l r For questiotrs13 30 choosetbc ONE BEST aDswerfrom the list provided 13 TheEIRgfevent tooccuduring anoffralinspiration is a raecreaseiqg a b Expansion of thelung f c A decrease in Perv f 9 frrt y t 4 OL r om QEJ PB PALV a b t r4 n Noneof lheabove is corecr l r o tr14t J f 7 14 Which of the following might interferewith the ability to cleaninhqlgfllhglgf parhogens from theconducting 6i6ii rq4as a smokins acisarett 9 Dt G ia 6f 1b 5 rir 2 rl b decreas d w3grygbgaubeidd lLEsEane orcitiar ed r i V c fptc ind eortnelal cers c geneticmutations intr ry4j llr w d onlya baretrlre a b and c aretrue l l 15 A Pneumolhorg canbecaused by 4qp 1 r tvf h o idl tlJ flu f ta 1t ft V vJ tJJ Y t a ruptureo e lung O b penetrationoflhe chestwall by a sharpob1ecr c allowing atnosphedc pressure PB to become equal to the pleual pressue PpJ d onlya baretrue ar dc arerue 4b 16 lf you volutadly hyDervll tilarefor 15se ondsand thenretum to relaxed breathing thgn fqompared ro whatit wasbeforeh erventilarion will durilg the first minuteor two afteryou stoph erventilating to r tuSo M r u r b r c decrease not change 17 IhepllqAry reasonfbr theabovercsponr o qu r 1fi J a decrease i Paco anincrease H l in rheCSF i c anin r ir n 6 y d oDlya baretrue e a b andc arc true I rT uPcoaa L1 L 5 wt PtQll Ul 18 Whjch of the tollowing ould NOT causepulmonaryedema qI l a A decrease in Porc L t b Ir A decrease in PaO2 i r f p h llvv 2 p rl cu 7 I 1 4 Y fi plv A tbY J edr d a decreasein the numberofpulmonary capillaries e a decreasein the meanblood pressureofthe main pulmonaryartery 4 1 1 tt l 1 o trylt 19 In a personwith pulmonaryfibrosis a FRCdecreases V t 1q f Lc rlt j b DL odecreases L frequenc of brecrlingdecreases c r d only a b aretlxe e a b andc aretrue 20 Which of the following will causea 11 I n theFEV FVCrario a increased mucusproduurion in theairway V b acrirarionofmusc a rin ic re c e p ro rs o n a ir ry mo o t h mu s c le li c e ll f a losrolelasticfibersin thelungrr sue y d only a b are true e a b and c are true klre t V 21 Whichof thefollowingmightcauselungcoTlliance l9i 4rease to p u lt LDs a emphysema emphysema 95 tc l7 ti 9li ru S h i nnal i onof rhel un g u ir h wa r e r r a r h e r r h c ni ui r c increased production oflung rurfrcranr 11 r tlr g 1 i 4 1 t u1 pr f r t t L 4 4 c t 76 u glit A o n l ya b a re tl u e f a b andc arc dse 22 Which of the following is FAISE with regardto a patientwith e plysenal a An increase in pulmonaryf5ggllllggi grce ducto a lossof pulmonary p p I capillaries b A decrease in the urface arerof thelune I l A normalPrO2Lluring exercise ab l l d A decrease in mucusclear u1qg zoneairways I i in theconducting e rlpqxq ponqy 1u o o1 g t91ion 111r ii Ll s t t I ilt l S r tl 23 Which statementis FALSE with regardto the diffusion of 02 acrossthe alveolar capillarymembranein a normalhealthyhuman u Under normalresringconditionsthe paO2 becomesequilibratedwith the PAO2abourl 3 of tie way rhroughtt 1