1 Endothelium a continuation of the aortic arch 2 coronary
     __________ 1. Endothelium a continuation of the aortic arch  ________ 2. coronary arteries a branch of the aortic arch  ________ 3. common carotid artery carry deoxygenated blood to lungs  _____________4. anterior cerebral artery carry blood toward the heart  ________ 5. valves drains blood from the head  __________ 6. arteries carries blood to frontal and parietal lobes  __________ 7. Celiac trunk composed of fibrous connective tissue  __________ 8. Vertebral vein carries blood away from the kidneys  _________9. Radial artery supply blood to myocardium  _______ 10. Pulmonary arteries a branch of the abdominal aorta  ________11. Thoracic aorta drains blood from spinal cord and neck muscles  _____12. renal vein contains smooth muscle tissue  _______13. tunica externa present in arteries but not veins  _____14. Popliteal vein carries nutrients from digestive organs to liver  ______ 15. internal elastic membrane prevent backflow of blood  ________ 16. brachiocephalic artery site  
  
  Solution
endothelium- composed of simple squamous epithelium
coronary artery-supply blood to myocardium
common carotid artery-carry blood to the head
anterior cerebral artery-carry blood to frontal and parietal lobes
celiac trunk- a branch of the abdominal aorta
vertebral vein- drains blood from spinal cord and neck

