Cardiovascular System

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Across
  1. 7. muscular pumping organ located medial to the lungs along the body's midline in the thoracic region
  2. 8. red pigment used to transport oxygen in the blood
  3. 10. smallest, thinnest, and most common of the blood vessels in the body
  4. 11. red blood cells lack a nucleus, therefore they contain no...
  5. 13. largest artery in the human body
  6. 14. ____ portal vein arises from networks in the stomach, intestines, pancreas, and spleen
  7. 16. red blood cells
  8. 18. essential for respiration
Down
  1. 1. this artery carries blood to the brachial (arm) and cephalic (head) regions
  2. 2. the average human body contains 4 to __ liters of blood
  3. 3. vessels lined with endothelium
  4. 4. arteries that branch off the aorta to provide blood to the left and right side of the heart
  5. 5. blood vessels that carry blood away from the heart
  6. 6. coronary ____ vein on the posterior side of the heart that returns deoxygenated blood from the myocardium to the vena cava
  7. 9. shape of erythrocytes
  8. 12. removes toxins, stores sugars, and processes the products of digestion before they reach the other body tissues
  9. 15. branch off from arteries and carry blood to capillaries
  10. 17. carry blood back to the heart