Across
- 3. Platelets are cell ______.
- 7. ______ outnumber the other types of formed elements.
- 10. Erythrocytes have no ______ or organelles.
- 11. Oxygen loading occurs in the _____.
- 15. What does hemoglobin bind with?
- 16. Most blood cells do not ______.
- 18. Hemoglobin being contained in erythrocytes, instead of existing free in plasma, prevents it from blood viscosity and ______ ______.
- 21. Mature erythrocytes are bound by a _____ membrane.
- 22. Blood flows more _____ when the number of red blood cells increases beyond the normal range.
- 24. Erythrocytes are shaped like _____ discs.
- 25. Do men or women have a lower red blood cells count?
- 26. What is the biconcave disc shape ideally suited for?
- 29. What makes red blood cells red?
- 30. The direction of _____ is from lungs to tissues.
- 31. How long do most of the formed elements survive in the bloodstream?
Down
- 1. Globin consists of ____ polypeptide chains.
- 2. Erythrocytes generate ATP by _____ mechanisms.
- 4. Hemoglobin is made up of what protein?
- 5. Erythrocytes look like miniature _____ when viewed with a microscope.
- 6. The formation of carbaminohemoglobin occurs more readily when hemoglobin is in what state?
- 8. A single red blood cell contains about _____ million hemoglobin molecules.
- 9. Spectrin gives erythrocytes _____ to change shape as necessary.
- 12. The erythrocyte transports _____ percent of the carbon dioxide released by tissue cells back to the lungs.
- 13. How much of the oxygen erythrocytes are transporting do they consume?
- 14. The RBC protein that functions in gas transport.
- 17. reduced hemoglobin
- 19. The biconcave shape of an erythrocyte is maintained by a network of proteins, especially one called ______.
- 20. Erythrocytes, leukocytes, and platelets are the formed elements of ______.
- 23. Only leukocytes are ______ cells.
- 27. _____ enzymes that rid the body of harmful oxygen radicals.
- 28. Blood cells are continuously renewed by division of cells in ____ ____.