Disorders

3. excessive increase in the number of erythrocytes
5. life-threatening condition in which one or more arteries in the lungs become blocked by a blood clot
8. lack of blood supply to the heart muscle
9. abnormal hemoglobin formed becomes spiky and sharp
11. insidious filling of the blood vessels with fatty, calcified deposits leads to this
14. pumping efficiency of the heart is depressed so that circulation doesn't meet tissue needs
15. bone marrow becomes cancerous and huge numbers of WBCs are turned out rapidly
16. heart attack
17. insufficient number of circulating platelets
20. pooling of blood in the feet and legs when standing for long periods of time

1. lack of factors needed for blood clotting
2. serious complication when inflammation of a vein results in poor circulation
4. abnormal heart sounds
6. low blood pressure and dizziness when they rise suddenly from a sitting position
7. decrease in the oxygen-carrying ability of the blood
10. decrease in red blood cells when the body can't absorb enough vitamin B-12
12. walls of vessels thicken and then protrude into the vessel lumen
13. inflammation of the pericardium that often results in a decrease in serous fluid
18. blood vessels in lungs become swollen with blood, pressure increases, and fluid leaks into lung tissue
19. bacterial infection of the endocardium, forces heart to contract more vigorously than normal