Which is not protein in the following blood coagulation factors? ()
A. factor I
B. factor II
C. factor III
D. factor IV
E. factor X
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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___. ()
A. venous return
B. heart rate
C. cardiac contractility
D. elasticity of aorta
E. rate of transfusion
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
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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