Category: Cardiovascular system

A. Isotonic relaxation
B. Isovolumetric relaxation
C. Isovolumetric contraction
D. Isotonic contraction

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. Aorta
B. Artery
C. Arteriole
D. Vein

A. Increases heart rate
B. Decreases myocardial irritability
C. Increases force of contraction
D. Increases oxygen uptake by heart

A. Cardiac efficiency
B. Cardiac index
C. Mean stroke volume
D. Mean arterial pressure

A. 0.4 seconds
B. 0.8 seconds
C. 1.2 seconds
D. 1.6 seconds

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

A. Reflex hyperpnea
B. Reflex Hypercapnia
C. Reflex tachycardia
D. Reflex Hypercapnia

A. Closure of the aortic and pulmonary valves
B. Opening of the aortic and pulmonary valves
C. Closure of the mitral and tricuspid valves
D. Opening of the mitral and tricuspid valves

A. Systolic ejection
B. Isovolumetric relaxation
C. Isovolumetric contraction
D. None of the above