Chap. 6 Ex. Phys review

Which of the following is the correct pathway of blood through the heart?

• Left ventricle, lungs, right ventricle, right atrium, body, left atrium.

• Right atrium, right ventricle, lungs, left atrium, left ventricle, body.

• Right atrium, lungs, left atrium, left ventricle, body, right ventricle.

• Left atrium, left ventricle, lungs, right atrium, right ventricle, body.

Skeletal muscle contractions are voluntary whereas cardiac muscle contractions are ___________ due to calcium "leakage" in the SA node.

The ______ is the pacemaker of the heart.

Which of the following resting heart rates would represent tachycardia?

• 60 bpm

• 85 bpm

• 110 bpm

• 90 bpm

Which of the following represents the electrical conduction pathway through a healthy heart?

• SA node, perkinje fibers, AV node, Bundle branches, AV bundle

• AV node, SA node, AV bundle, bunde branches

• SA node, AV node, AV bundle, bundle branches, perkinje fibers

• Bundle branches, AV bundle, SA node, AV node, perkinje fibers

Which of the following represents a normal resting cardiac output?

• 7 L/min

• 3 L/min

• 5 L/min

• 6.5 L/min

Which of the following represents a normal resting stroke volume?

• 100 ml

• 80 ml

• 60 ml

• 120 ml

Which of the following represents a normal EDV (end diastolic volume)?

• 130 ml

• 100 ml

• 80 ml

• 90 ml

Cardiac output is a product of which 2 variables?

• HR and EDV

• ESV and EDV

• HR and SV

• SV and EDV

What is a normal EDV (end diastolic volume)?

• 30 ml

• 50 ml

• 90 ml

• 20 ml