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