The ventricular repolarization in ECG is best seen in_______________?
A. “P” wave
B. “Q” wave
C. “R” wave
D. “T” wave
Parasympathetic stimulation of heart causes______________?
Parasympathetic stimulation of heart causes______________?
A. SA node decreases firing
B. Increased AV node excitability
C. Decreased ventricular contraction
D. Tachycardia
The dicrotic notch on the aortic pressure curve is caused by_________________?
The dicrotic notch on the aortic pressure curve is caused by_________________?
A. Closure of the pulmonary valve
B. Rapid filling of the left ventricle
C. Closure of the aortic valve
D. Contraction of the atria
The function of Carotid body is_______________?
The function of Carotid body is_______________?
A. Measures the change in Po2 in arterial blood
B. Measures Po2 in venous blood
C. Measures the changed in CO2 in arterial blood
D. Measures the change in CO2 in venous blood
What is common between systemic and pulmonary circulation is_____________?
What is common between systemic and pulmonary circulation is_____________?
A. Volume of the circulation per minute
B. Peripheral vascular resistance
C. Pulse Pressure
D. Total Capacity
The velocity of conduction in the Purkinjie fibers of the heart is__________________?
The velocity of conduction in the Purkinjie fibers of the heart is__________________?
A. 1 to 4 m/sec
B. 5 to 8 m/sec
C. 9 to 12 m/sec
D. More than 12 m/sec
Which of the following increases turbulence in blood flow ?
Which of the following increases turbulence in blood flow ?
A. Reynolds number < 2000
B. Decrease in velocity of blood
C. Decrease in density of blood
D. Increase in diameter of blood vessel
Glomerular capillary pressure differ from other capillaries of body in______________?
Glomerular capillary pressure differ from other capillaries of body in______________?
A. Higher filtration pressure
B. Lower filtration pressure
C. Both of the above
D. None
In determining blood pressure by auscultatory method_____________?
In determining blood pressure by auscultatory method_____________?
A. The loudest sound is the diastolic pressure
B. Systolic pressure estimation tends to be lower than those make by palpatory method
C. The first sound heard is the systolic pressure
D. The sounds that are heard are generated in heart
The following factors increase the cardiac output except______________?
The following factors increase the cardiac output except______________?
A. Preload
B. After load
C. Heart rate
D. Myocardial contractility