- (A) Due to closure of semilunar valves
- (B) Is occasionally split
- (C) Has longer duration than 1st heart sound
- (D) Marks the onset of diastole
Medical Mcqs
- (A) Increase in heart rate
- (B) Decreased vagal discharge
- (C) Increased sympathetic discharge
- (D) Decrease in blood pressure
- (A) A-alpha fibers
- (B) A-beta fibers
- (C) A-gamma fibers
- (D) A-delta fibers
- (A) Peripheral resistance X tissue fluid
- (B) Peripheral resistance X cardiac rate
- (C) Blood pressure X cardiac rate
- (D) Heart rate X blood volume
- (A) Venules
- (B) Arterioles
- (C) Capillaries
- (D) Precapillary sphincters
- (A) Aorta
- (B) Arteries
- (C) Capillaries
- (D) Venules
- (A) Starling’s law of heart states that increase in force of contraction is directly related to cardiac ouput
- (B) Staling’s law of heart states that the force of ventricular contraction is directly related to the end diastolic volume
- (C) Both A and B
- (D) None of the above
- (A) cardiac output and body weight
- (B) Cardiac output and body surface area
- (C) Cardiac output and work of the heart
- (D) Stroke volume and pulse rate
- (A) Isovolumetric contraction
- (B) Isovolumetric relaxation
- (C) Pre-diastole
- (D) Pre-systole
- (A) AV node
- (B) SA node
- (C) Bundle of His
- (D) Purkinje fibers
