The Human Body

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Across
  1. 4. The words used to describe blood that contains high levels of oxygen.
  2. 5. A type of blood vessel that carries blood back into the heart.
  3. 7. An important organ in the body which is made up of muscle.
  4. 8. There are 4 of these in the heart.
  5. 10. This fluid is crucial to our survival as it transports useful substances like oxygen around the body.
  6. 11. This body system is made up of the skeleton. It provides support to our body.
Down
  1. 1. The word used to describe the number of heartbeats per minute.
  2. 2. An instrument used a lot by doctors to listen to a patient's heartbeat.
  3. 3. Prevents blood from flowing the wrong way. These can be found in the heart and in the veins.
  4. 6. This body system is made up of the brain, nerves and spinal cord. It controls all actions in the body.
  5. 9. This structure protects the heart and the lungs.