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SCIN132 Week 3 Quiz Latest 2017/SCIN132 Week 3 Quiz Latest 2017

QuestionQuestion 1 of 323.0/ 3.0 PointsWhat is the bursting of a blood vessel called?A.embolusB.aneurysmC.thrombusD.myocardial infarctionE.strokeQuestion 2 of 323.0/ 3.0 PointsAt any one time, where is the majority of the blood found in the body?A.veinsB.lungsC.lymphatic vesselsD.capillariesE.arteriesQuestion 3 of 323.0/ 3.0 PointsBlood pressure ______ with distance from the left ventricle while the total cross-sectional area of the blood vessels __________.A.decreases, increasesB.increases, decreasesC.stays the same, decreasesD.stays the same, increasesE.decreases, stays the sameQuestion 4 of 323.0/ 3.0 PointsWhich of the following blood vessels are small, thin, and porous enough to exchange substances at the tissue level of organization?A.arteriolesB.capillariesC.venulesD.small arteriesE.veinsQuestion 5 of 320.0/ 3.0 PointsWhat is the instrument called that is used to measure blood pressure?A.stethoscopeB.CPRC.sphygmomanometerD.ECGE.AEDQuestion 6 of 323.0/ 3.0 PointsWhich of the following activities is not recommended for prevention of cardiovascular disease?A.Know your cholesterol level.B.Take antioxidant vitamins (A, E, and C).C.Raise the LDL intake.D.Use olive and canola oil rather than butter/cream.E.Exercise moderately.Question 7 of 323.0/ 3.0 PointsRBCs are better known as ________ and WBCs are better known as ___________.A.lymphocytes, monocytesB.erythrocytes, eosinophilsC.leukocytes, erythrocytesD.erythrocytes, leukocytesE.macrophages, neutrophilsQuestion 8 of 323.0/ 3.0 PointsAfter blood clots, the yellowish fluid that escapes from the clot is calledA.thrombin.B.fibrinogen.C.serum.D.lymph.E.plasma.Question 9 of 323.0/ 3.0 PointsHemoglobin that carries carbon dioxide is calledA.oxyhemoglobin.B.betahemoglobin.C.carbaminohemoglobin.D.alphahemoglobin.E.deoxyhemoglobin.Question 10 of 323.0/ 3.0 PointsHow many globin chains are found in hemoglobin?A.0B.1C.2D.3E.4Question 11 of 323.0/ 3.0 PointsWhich term refers to uncontrolled growth of white blood cells?A.leukemiaB.infectious mononucleosisC.thrombocytopeniaD.hemophiliaE.thromboembolismQuestion 12 of 323.0/ 3.0 PointsCertain complement proteins kill foreign microbes byA.creating interferon.B.causing them to burst.C.inactivating their ribosomes.D.agglutinating them.E.destroying their nucleic acids.Question 13 of 323.0/ 3.0 PointsThe RhoGAM shot given to Rh negative mothers with an Rh positive fetus is an example of what type of immunity?A.activeB.passiveC.nonspecificD.generalE.neutralQuestion 14 of 323.0/ 3.0 PointsShaun was in need of a kidney transplant. What is the most important thing that needs to match between him and the kidney donor?A.TCRB.MHCC.PCRD.HCGE.EKGQuestion 15 of 323.0/ 3.0 PointsWhich of the following is not a sign of inflammation?A.rednessB.heatC.swellingD.painE.difficulty breathingQuestion 16 of 320.0/ 3.0 PointsWhich of the following is not an autoimmune disease?A.hay feverB.rheumatic feverC.rheumatoid arthritisD.systemic lupus erythematosusE.myasthenia gravisQuestion 17 of 320.0/ 3.0 PointsWhat is the name of the lymphatic vessels located in the small intestines?A.tonsilsB.nodesC.polypsD.adenoidsE.Peyer patchesQuestion 18 of 323.0/ 3.0 PointsWhich category of disease classification is described as having more cases than expected in a given period of time?A.epidemicB.outbreakC.pandemicD.None of theseE.opportunistic infectionQuestion 19 of 323.0/ 3.0 PointsThere are normally 1-2 cases of measles per month in a particular city. However, in the month of September, there were 15 cases. Is this an epidemic?A.YESB.NOQuestion 20 of 323.0/ 3.0 PointsIn which phase of an HIV infection is the person typically asymptomatic?A.acute phase (A)B.chronic phase (B)C.AIDS (C)D.AIDS (D)E.terminal phaseQuestion 21 of 320.0/ 3.0 PointsThe HIV virus contains a genome composed ofA.double stranded DNA.B.single stranded RNA.C.double stranded RNA.D.single stranded RNA.E.one strand of DNA and one strand of RNA.Question 22 of 320.0/ 3.0 PointsHow long does the treatment for TB take?A.1-2 daysB.1-2 weeksC.1 monthD.2 monthsE.6+ monthsQuestion 23 of 323.0/ 3.0 PointsResearch shows that in the absence of neural and hormonal influences, the sinoatrial (SA) node generates action potentials at a frequency of about 100 times per minute. However, the resting heart rate is about 70 beats per minute. What would the approximate heart rate be if the vagus nerve weresevered?A.about 70 beats per minuteB.faster than 100 beats per minuteC.slower than 70 beats per minuteD.about 100 beats per minuteQuestion 24 of 320.0/ 3.0 PointsWhich of the following types of muscle are capable of autorhythmicity?A.CardiacB.SmoothC.SkeletalD.Cardiac and smoothE.Cardiac and skeletalQuestion 25 of 323.0/ 3.0 PointsWhat happens during Phase 3 of cardiac muscle depolarization?A.Membrane potential falls slightly and then rebounds as potassium flow out of the cell decreases and calcium flows into the cell.B."The plateau phase"; when the membrane remains in a depolarized state; potassium channels stay closed and calcium channels stay open.C.Period of resting potential until the next depolarization.D.repolarization to reach the resting membrane potential.Question 26 of 320.0/ 3.0 PointsIn the simulation, when vagus nerve stimulation was applied to the frog heart, _______.A.the force of contraction increased and the heart rate slowed and eventually stoppedB.the heart rate slowed and eventually stoppedC.the force of contraction decreasedD.the force of contraction increasedQuestion 27 of 323.0/ 3.0 PointsIn the simulation, delivering single shocks in succession to stimulate the frog heart _______.A.resulted in fused tetanusB.resulted in wave summationC.did not increase the height of the ventricular systole waveD.increased the height of the ventricular systole waveQuestion 28 of 323.0/ 3.0 PointsThe effect of vagus nerve stimulation on the heart is to _______.A.decrease the heart rateB.increase the heart rateC.increase the heart rate and increase the force of contractionD.decrease the heart rate and decrease the force of contractionQuestion 29 of 323.0/ 3.0 PointsThe repolarization of cardiac muscle is due to _______.A.sodium exiting the cellB.potassium exiting the cellC.potassium entering the cellD.sodium entering the cellPart 6 of 7 - 0.0/ 8.0 PointsAnswer the following question in your own words without using any resources. Your answer should be written in complete sentences using correct grammar, spelling, and terminology.Question 30 of 32Briefly explain why wave summation and tetany would be deadly in cardiac muscle.Question 31 of 32Briefly explain how the sympathetic and parasympathetic nervous systems work together to regulate heart rate.

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