Q.1
Where does the heart pump oxygenated blood to?
  • To the brain only
  • To the lungs only
  • To the digestive system only
  • To the whole body
Q.2
The heart pumps blood to the lungs. What waste product is removed from the blood by the lungs?
  • Oxygen
  • Acid
  • Carbon dioxide
  • Urea
Q.3
The human circulatory system includes the heart, lungs and blood vessels. What is another name for the circulatory system ?
  • The endocrine system
  • The cardiovascular system
  • The nervous system
  • The digestive system
Q.4
Which are the thinnest and smallest blood vessels?
  • Arteries
  • Veins
  • Capillaries
  • None of the above
Q.5
What enters the blood from the lungs?
  • Oxygen
  • Acid
  • Carbon dioxide
  • Urea
Q.6
Which one of the following is part of the heart?
  • Right ventilator
  • Septum
  • Right atrium
  • Left ventricle
Q.7
Which blood vessels carry oxygenated blood?
  • Arteries
  • Veins
  • Capillaries
  • All of the above
Q.8
Blood delivers oxygen and what else to the cells in your body?
  • Carbon dioxide
  • Energy
  • Essential nutrients
  • Kind thoughts
Q.9
What is the easiest way to measure your heart rate?
  • By seeing how many sit-ups you can do in 30 seconds
  • By counting your breaths
  • By listening to your heartbeats
  • By checking your pulse rate
Q.10
Waste products must be removed before the blood returns to the heart. Which organs remove waste from the blood?
  • The brain and spleen
  • The liver and kidneys
  • The skin and gall bladder
  • The liver and spleen
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