The mechanisms of AP are ()
A. Na+ influx in depolarization phase
B. K+ efflux in repolarization phase
Ca2+ influx in depolarization phase
D. Ca2+ efflux in repolarization phase
E. Na+ - K+ pump after repolarization
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The functions of the microcirculation are ()
A. the exchange of nutrients and wastes between blood and tissue
B. the filtration of water through capillaries
C. the regulation of vascular resistance
D. the autoregulation of blood flow
E. its role as a blood reservoir
Physiological characteristics of ventricular muscle cells are ()
A. rich in myofibrils
B. poor in myofibrils
C. to generate the AP automatically
D. to conduct AP
E. contractile cells
The mechanisms of AP plateau in ventricular cell are ()
A. K+ efflux
B. few Na+ influx
C. Na+ - K+ pump
D. Ca2+ influx
E. Cl- influx
Factors affecting glomerular filtration include ()
A. glomerular capillary blood pressure
B. capsular pressure
C. plasma colloid osmotic pressure
D. renal plasma flow
E. filtration coefficient, Kf
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