The Heart

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Across
  1. 2. Passage that closes to let fluid out
  2. 4. Tubular vessels branching out that carry blood
  3. 6. Trunk that carries blood from the heart through the
  4. 7. Involving, held by, or resulting from surface tension
  5. 8. Dividing wall or membrane
Down
  1. 1. Muscle The principal involuntary muscle tissue of the
  2. 2. Chamber that lets out blood to the arteries
  3. 3. Cava Large veins that returns blood to the right atrium
  4. 5. Any of the tubular muscular and elastic-walled vessels
  5. 6. Chamber in the heart that receives blood