The Circulatory System

How many 'chambers' does the heart have

• 1

• 2

• 3

• 4

The name of the hearts chamber that pumps blood into the aorta is called the...

• Left Ventricle

• Ventricle

• Right Ventricle

• Left Atrium

The purpose of valves in the heart is to .....

• Keep blood in the atria

• Stop blood from flowing into the ventricles

• stop the backflow of blood

• allow air from the lungs to get into the blood

Which blood vessels bring deoxygenated blood to the heart

• pulmonary veins

• pulmonary arteries

• Vena Cava

• Aorta

Which on of the following is not a function of the blood

• Transport Co2

• Transport Nutrients

• form blood clots

• Help control body temperature

which of the following is not a component of the blood

• Iron

• plasma

• Red blood cells

• platelets

How much blood does an average adult have

• 1 litre

• 3 litres

• 6 litres

• 12 litres

How much of your blood is liquid

• 55%

• 45%

• 70%

• 30%

what would happen to your blood pressure if you were very dehydrated

• increase

• decrease

• stay the same

• go down then go up.

What would happen to the viscosity of the blood if you were very dehydrated

• decrease

• remain same

• go down then up

• increase