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29) Given a constant pressure, the greater the radius of the vessel, the greater the tension on the vessel walls.Diff: 6 Page Ref: 39020
13.3 Matching QuestionsMatch the structure to the correct description.A) right atriumB) left ventricleC) left atriumD) right ventricle1) Receives deoxygenated blood from veins.Diff: 3 Page Ref: 3632) Receives blood from the pulmonary veins.Diff: 3 Page Ref: 3643) The SA node is located here.Diff: 4 Page Ref: 3684) The mitral valve separates this chamber from its associated ventricle.Diff: 4 Page Ref: 3675) This chamber empties into the aorta.Diff: 2 Page Ref: 3636) This chamber has the thickest myocardium.Diff: 4 Page Ref: 3667) During isovolumetric contraction, this chamber has the greatest pressure.Diff: 5 Page Ref: 3798) This chamber is connected to the pulmonary arteries.Diff: 3 Page Ref: 364Answers: 1) A 2) C 3) A 4) C 5) B 6) B 7) B 8) D21
Match the type of blood with its location.A) oxygenatedB) deoxygenated9) Pulmonary artery.Diff: 3 Page Ref: 36410) Systemic venules.Diff: 4 Page Ref: 36311) Right atrium.Diff: 3 Page Ref: 36312) Left ventricle.Diff: 3 Page Ref: 36313) Pulmonary arterioles.Diff: 4 Page Ref: 36414) Pulmonary veins.Diff: 3 Page Ref: 364Answers: 9) B 10) B 11) B 12) A 13) B 14) A22
Match the channel type with the appropriate description.A) potassium channelsB) T-type calcium channelsC) funny channelsD) L-type calcium channelsE) voltage-gated sodium channels15) Allows sodium movement into the cell during the early spontaneous depolarization in autorhythmic cells.Diff: 4 Page Ref: 37316) Allows calcium movement into the cell during the late spontaneous depolarization in autorhythmic cells.Diff: 5 Page Ref: 37317) Allows ion movement out of the cell during repolarization of the autorhythmic cells.Diff: 4 Page Ref: 37318) Responsible for ion movement during the depolarization phase of the autorhythmic cell action potential.Diff: 5 Page Ref: 37319) These channels open during the plateau phase of the cardiac contractile cell action potential.Diff: 5 Page Ref: 37420) Opening of these channels is responsible for the depolarization phase of the cardiac contractile cell action potential.Diff: 4 Page Ref: 374Answers: 15) C 16) B 17) A 18) D 19) D 20) E23
Match the component of the ECG with the action it represents.A) P waveB) P-R intervalC) T waveD) Q-T intervalE) QRS complexF) T-Q segment