Related Questions

Cardiac output is not affected by __
A exercise
B anxiety
C pregnancy
D sleep
Cardiac output is increased
A When heart rate is increased
B In rapid arrhythmia
C By shortening of myocardial fiber
D By decreased sympathetic stimulation
E By increased diastolic pressure
Drugs that can effectively decrease the cardiac output are
A Metoprolol
B Amlodipine
C Methyldopa
D Dobutamine
E Lisinopril
Non cardiac causes of atrial fibrillation is :
A chronic kidney disease
B stroke
C Pneumonia
D Chronic liver disease
My uncle, who is a cardiac surgeon, deals with_
A kidney patients
B heart patients
C liver patients
D patients with eye problems
Cell junctions make up an intercalated disc of cardiac muscle are
A Fascia adherens
B Desmosomes
C Gap junction
D Occluding junction
E Hemidesmosomes
Cardiac muscle fibres
A Have intercalated discs where there are desmosomes and gap (communicatinjunctions
B Are modified to form the nodes and conducting tissue of the heart
C Have a peripheral nucleus
D Have a T-system of tubules between the A and I bands
E Have motor end-plates
Plateau phase in the action potential of cardiac muscle
A Is due to slow Ca+ -Na channel
B Coincides with ventricular systole
C Results in prolonged refractory period
D Is due to efflux of K+
E Is due to fast sodium channel
Plateau (phase2) of the action potential in cardiac muscle
A Coincides with ventricular systole
B Results in prolonged refractory period
C Is due increased calcium ion influx
D Coincides with PR interval of ECG
E Is due to efflux of K+
Plateau in the cardiac muscle
A Is due to opening of slow calcium-sodium channel
B Results in prolonged refractory period
C Coincides with ventricular systole
D Is due to K+ efflux
E Is due to opening of transient calcium channel

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