Body Fluids and Circulation

Class 11 · Biology

106 questions50 easy43 medium13 hard

Sample Questions

Q1.The second heart sound 'dub' is produced by:

  • AClosure of tricuspid valve
  • BClosure of semilunar valves
  • COpening of bicuspid valve
  • DContraction of atria

Q2.The nodal tissue in the heart is autoexcitable, meaning:

  • AIt requires nervous stimulation to generate action potentials
  • BIt can generate action potentials without any external stimuli
  • CIt responds only to hormonal signals
  • DIt contracts only when blood fills the chambers

Q3.Which hormones from the adrenal medulla can increase cardiac output?

  • AInsulin and glucagon
  • BThyroxine and calcitonin
  • CAdrenal medullary hormones (adrenaline/noradrenaline)
  • DGrowth hormone

Q4.The sino-atrial node (SAN) is located in the:

  • ALeft atrium
  • BRight upper corner of the right atrium
  • CInter-ventricular septum
  • DLeft ventricle

Q5.The double-walled membranous bag surrounding the heart is called:

  • APericardium
  • BPeritoneum
  • CPleura
  • DMeninges

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

ABO Blood GroupingBlood Composition and PlasmaCardiac CycleCardiac Output and Stroke VolumeCirculatory Pathways - Open and ClosedCoagulation of BloodDisorders of Circulatory SystemDouble CirculationElectrocardiogram (ECG)Formed Elements - PlateletsFormed Elements - RBCsFormed Elements - WBCsHeart Chambers across VertebratesHuman Heart StructureLymph and Tissue FluidRegulation of Cardiac ActivityRh Grouping and Erythroblastosis Foetalis

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