1
R507 Advanced Pathophysiology Midterm Exam
Question1
2/2pts
Thelungisinnervatedbytheparasympatheticnervoussystemviawhichnerve?
Vagus
Phrenic
Brachial
Pectoral
Fibersoftheparasympatheticdivisionoftheautonomicnervoussystem(ANS)tra
vel only in the vagus nerve to the lung.
Question2
2/2pts
Whatistheactionofurodilatin?
Urodilatincausesvasoconstrictionofafferentarterioles.
Itcausesvasodilationoftheefferentarterioles.
Urodilatininhibitsantidiuretichormonesecretion.
Page1of36
,2
Itinhibitssaltandwaterreabsorption.
Urodilatin (a natriuretic peptide) inhibits sodium and water reabsorption
from the
medullarypartofcollectingduct,therebyproducingdiuresis.Itisnotinvolvedinth
e actions described by the other options.
Question3
2/2pts
Whatisthedirectactionofatrialnatriuretichormone?
Sodiumretention
Sodiumexcretion
Waterretention
Waterexcretion
Atrialnatriureticpeptide(ANP)andbrainnatriureticpeptide(BNP)inhibitthesecr
etion of renin, inhibit angiotensin-induced secretion of aldosterone,
vasodilate the afferent
andconstricttheefferentglomerulararterioles,andinhibitsodiumandwaterabs
orption bykidneytubules.Theotheractions are not aresult ofthe atrial
natriuretichormone.
Question4
2/2pts
WhichstatementbestdescribesaSchillingtest?
Page2of36
,3
Administrationofradioactivecobalaminandthemeasurementofitsexcretionint
he urine to test for vitamin B deficiency
12
Measurementofantigen-antibodyimmunecomplexesinthebloodtotestforhemolytic
anemia
Measurementofserumferritinandtotaliron-bindingcapacityinthebloodtotestforiron
deficiencyanemia
Administrationoffolateandmeasurement
in2hoursofitslevelinabloodsampleto test for folic acid deficiency anemia.
TheSchillingtestindirectlyevaluatesvitaminB12absorptionbyadministeringradio
active B12and measuringexcretion intheurine.Thisselectionistheonlyoption
thataccurately describes a Schilling test.
Question5
2/2pts
Hemolyticdiseaseofthenewborn(HDN)canoccurifthemother:
IsRh-positiveandthefetusisRh-negative
IsRh-negativeandthefetusisRh-positive
HastypeAbloodandthefetushastypeO
HastypeABbloodandthefetushastypeB
HDNcanoccuronlyifantigensonfetalerythrocytesdifferfromantigensonmatern
al erythrocytes.Maternal-
fetalincompatibilityexistsonlyifthemotherandfetusdifferin ABO blood type or
if the fetus is Rh-positive and the mother is Rh-negative. This erythrocyte
incompatibility does not exist in any of the other options.
Page3of36
, Question6
2/2pts
WhichT-lymphocytephenotypeisthekeydeterminantofchildhoodasthma?
Clusterofdifferentiation(CD)4T-helperTh lymphocytes
1
CD4T-helperTh lymphocytes
2
CD8cytotoxicTlymphocytes
MemoryTlymphocytes
AsthmadevelopsbecausetheTh2response(in which CD4T-helpercellsproduce
specificcytokines,suchasinterleukin[IL]–4,IL-5,andIL-
13)promotesanatopicand allergic response in the airways. This selection is
the only option that accurately identifies the appropriate T-lymphocyte
phenotype.
Question7
2/2pts
Perceivedstresselicitsanemotional, anticipatoryresponsethatbeginswhere?
Prefrontalcortex
Anteriorpituitary
Limbicsystem
Page4of36
R507 Advanced Pathophysiology Midterm Exam
Question1
2/2pts
Thelungisinnervatedbytheparasympatheticnervoussystemviawhichnerve?
Vagus
Phrenic
Brachial
Pectoral
Fibersoftheparasympatheticdivisionoftheautonomicnervoussystem(ANS)tra
vel only in the vagus nerve to the lung.
Question2
2/2pts
Whatistheactionofurodilatin?
Urodilatincausesvasoconstrictionofafferentarterioles.
Itcausesvasodilationoftheefferentarterioles.
Urodilatininhibitsantidiuretichormonesecretion.
Page1of36
,2
Itinhibitssaltandwaterreabsorption.
Urodilatin (a natriuretic peptide) inhibits sodium and water reabsorption
from the
medullarypartofcollectingduct,therebyproducingdiuresis.Itisnotinvolvedinth
e actions described by the other options.
Question3
2/2pts
Whatisthedirectactionofatrialnatriuretichormone?
Sodiumretention
Sodiumexcretion
Waterretention
Waterexcretion
Atrialnatriureticpeptide(ANP)andbrainnatriureticpeptide(BNP)inhibitthesecr
etion of renin, inhibit angiotensin-induced secretion of aldosterone,
vasodilate the afferent
andconstricttheefferentglomerulararterioles,andinhibitsodiumandwaterabs
orption bykidneytubules.Theotheractions are not aresult ofthe atrial
natriuretichormone.
Question4
2/2pts
WhichstatementbestdescribesaSchillingtest?
Page2of36
,3
Administrationofradioactivecobalaminandthemeasurementofitsexcretionint
he urine to test for vitamin B deficiency
12
Measurementofantigen-antibodyimmunecomplexesinthebloodtotestforhemolytic
anemia
Measurementofserumferritinandtotaliron-bindingcapacityinthebloodtotestforiron
deficiencyanemia
Administrationoffolateandmeasurement
in2hoursofitslevelinabloodsampleto test for folic acid deficiency anemia.
TheSchillingtestindirectlyevaluatesvitaminB12absorptionbyadministeringradio
active B12and measuringexcretion intheurine.Thisselectionistheonlyoption
thataccurately describes a Schilling test.
Question5
2/2pts
Hemolyticdiseaseofthenewborn(HDN)canoccurifthemother:
IsRh-positiveandthefetusisRh-negative
IsRh-negativeandthefetusisRh-positive
HastypeAbloodandthefetushastypeO
HastypeABbloodandthefetushastypeB
HDNcanoccuronlyifantigensonfetalerythrocytesdifferfromantigensonmatern
al erythrocytes.Maternal-
fetalincompatibilityexistsonlyifthemotherandfetusdifferin ABO blood type or
if the fetus is Rh-positive and the mother is Rh-negative. This erythrocyte
incompatibility does not exist in any of the other options.
Page3of36
, Question6
2/2pts
WhichT-lymphocytephenotypeisthekeydeterminantofchildhoodasthma?
Clusterofdifferentiation(CD)4T-helperTh lymphocytes
1
CD4T-helperTh lymphocytes
2
CD8cytotoxicTlymphocytes
MemoryTlymphocytes
AsthmadevelopsbecausetheTh2response(in which CD4T-helpercellsproduce
specificcytokines,suchasinterleukin[IL]–4,IL-5,andIL-
13)promotesanatopicand allergic response in the airways. This selection is
the only option that accurately identifies the appropriate T-lymphocyte
phenotype.
Question7
2/2pts
Perceivedstresselicitsanemotional, anticipatoryresponsethatbeginswhere?
Prefrontalcortex
Anteriorpituitary
Limbicsystem
Page4of36
