The works of the Cardio Thorastic cavity

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Across
  1. 3. The lower two chambers of the heart.
  2. 4. A double membrane sac that covers the heart.
  3. 6. Refers to blood vessels.
  4. 8. What kind of blood does the right atrium receive from all parts of the body?
  5. 10. The heart is located in between the lungs in the__________, and posterior to the sternum.
  6. 14. A thin outer layer of the visceral layer of the pericardium.
  7. 15. The upper two chambers of the heart.
Down
  1. 1. Refers to the heart.
  2. 2. What kind of blood does the left atrium receive from the lungs via the four pulmonary veins?
  3. 3. The inner layer that covers the heart.
  4. 5. Septum What the two upper chambers are separated by?
  5. 7. The right ventricle chamber receives blood from the right atrium and pumps blood to the _______ via the pulmonary artery?
  6. 9. The inner, thin layer, next to the blood.
  7. 11. Septum What the two lower chambers are separated by?
  8. 12. System Contains the spleen, lymphatic, tissues, and vessels
  9. 13. The middle thickest layer of the heart, it also contains the heart muscle.