题目内容

___ of the systemic circulation is similar to that of the pulmonary circulation. ()

A. The systolic pressure
B. The diastolic pressure
C. The pulse pressure
D. The peripheral resistance
E. The cardiac output

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Blood pressure can be buffered by___. ()

A. venous return
B. heart rate
C. cardiac contractility
D. elasticity of aorta
E. rate of transfusion

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The preload of the ventricle can be expressed as ()

A. end-diastolic volume of the ventricle
B. end-systolic volume of the ventricle
C. aortic pressure
D. the ventricular volume in the rapid ejection period
E. the ventricular volume in the isovolumetric relaxation period

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Phase 3 of the action potential in the cardiac working cells is formed by ___. ()

A. deactivation of Na+ channel
B. Na+ influx
C. K+ efflux
D. Ca2+ influx
E. Cl- influx

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QRS complex signifies ___. ()

A. depolarization of the atria
B. depolarization of the ventricles
C. systole of ventricles
D. systole of atria
E. diastole of ventricles

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___ of the systemic circulation is similar to that of the pulmonary circulation. ()

A. The systolic pressure B. The diastolic pressure C. The pulse pressure D. The peripheral resistance E. The cardiac output

Blood pressure can be buffered by___. ()

The preload of the ventricle can be expressed as ()

Phase 3 of the action potential in the cardiac working cells is formed by ___. ()

QRS complex signifies ___. ()

A. The systolic pressure
B. The diastolic pressure
C. The pulse pressure
D. The peripheral resistance
E. The cardiac output