heart

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Across
  1. 1. branching blood vessels that form a network between the arterioles and venules
  2. 7. a large vein carrying deoxygenated blood into the heart
  3. 10. an apparatus used to control heart fibrillation by application of an electric current to the chest wall or heart.
Down
  1. 2. a rhythmical throbbing of the arteries as blood is propelled through them
  2. 3. any of the muscular-walled tubes forming part of the circulation system by which blood is conveyed from the heart to all parts of the body
  3. 4. a partition separating two chambers, such as that between the nostrils or the chambers of the heart
  4. 5. any of the tubes forming part of the blood circulation system of the body
  5. 6. a device for controlling the passage of fluid or air through a pipe, duct, etc.,
  6. 8. the main artery of the body, supplying oxygenated blood to the circulatory system. In humans it passes over the heart from the left ventricle and runs down in front of the backbone
  7. 9. each of the two upper cavities of the heart from which blood is passed to the ventricles.