OBE CVS II 2020

The following statements are function of water in the blood plasma EXCEPT

• Dissolve substance in blood

• Carry substance in blood

• Release heat from the body

• Balance the blood volume

Oxygen is supplied to the myocardium of the heart through

• carotid artery

• coronary artery

• pulmonary artery

• subclavian artery

The conduction system of the heart start and control its own heart rhythm. The source of this electrical activity is

• auto-rhythmicity

• contractile fiber

• positive iotropic

• negative iotropic

The heart sound 'lub' can be heard

• semilunar valves opening during atrium diastole

• semilunar valves opening during atrium systole

• AV valves closing after ventricular systole

• AV valves closing during ventricular diastole

Which of the following initiate the clotting mechanism in the blood?

• fibrin

• fibrinogen

• prothrombin

• prothrombinase

Which of the following is true about blood type A?

• Has antigen A and antibody A

• Has antigen A and antibody B

• Has antigen AB and no antibody

• Has antibody AB and no antigen

Histamine causes inflammation.

Which white blood cell (leucocyte) release histamine ?

• monocyte

• basophil

• neutrophil

• lymphocyte

In conduction system of the heart, impulse that travels to Purkinje fibers will cause

• atrial systole

• atrial diastole

• ventricular systole

• ventricular diastole

The highest blood pressure is in

• veins

• venules

• arteries

• arterioles

Find the CORRECT match between blood circulation and its function

• pulmonary - carry blood to all body tissues

• systemic - carry deoxygenated blood to the lungs

• coronary - carry oxygenated blood to the heart muscles

• hepatic - carry blood with nutrients to the digestive system