The Circulatory System
Across
- 3. Fragment of bone marrow cells that circulate in the blood and help with plotting
- 4. A circulatory system in which the vessels are open-ended and the fluid bathes the organs and tissues, blood and interstitial fluid are the same
- 5. The contraction stage of the heart when the heart chambers actively pump blood
- 6. Conveys blood between arterioles and venules, allows the exchange of nutrients and dissolved gases between blood and interstitial fluid
- 10. The alternating contractions and relaxations of the heart
- 11. A plasma protein that is activated to form a blood clot
- 13. Large artery that conveys blood from the left ventricle to other arteries
- 14. Cell that can make a copy of itself and a specialized cell
- 17. A network of capillaries in a tissue or organ
- 19. The branch of the circulatory system that supplies the lungs
- 20. A vessel that returns blood to the heart
- 23. Connective tissue with a fluid matrix called plasma where red blood cells, white blood cells, and platelets are suspended
- 24. Damage to heart that results in not enough blood being pumped to the body
- 26. Low levels of hemoglobin or red blood cells cause not enough oxygen to get to the body
- 28. A vessel that conveys blood between a capillary bed and a vein
- 29. Blood cell which carries hemoglobin which transports oxygen; also known as erythrocytes
- 31. The pacemaker of the heart,located in the wall of the right atrium, sets the rate and timing of when all cardiac muscle cells are set to contract
- 32. Rythmic stretching of the arteries caused by pressure of blood during the contractions of the ventricles in systole
- 36. Cardiovascular disease where fatty deposits called plaques develop in arteries, narrowing the artery
- 37. A white blood cell that engulfs bacteria, foreign proteins, or the remains of dead body cells
- 38. Becomes the threads that form the fabric of a blood clot, the activated form of fibrinogen
- 40. Vessel that conveys blood between an artery and the capillary bed
- 41. Disorders of the heart and blood vessels
- 42. Vessel that carries blood away from the heart to the body
- 43. Muscular pump that propels blood through vessels
- 44. A disorder in which blood pressure is abnormally high
- 45. A closed circulatory system with a heart and a branching network of arteries, veins, and capillaries
- 46. Blood vessel that conveys blood from the heart to the lungs
- 47. Part of the circulatory system that brings oxygenated blood to the body and conveys deoxygenated blood away from it back to the heart
Down
- 1. Blood is confined to the vessels and is separate from interstitial fluid
- 2. Heart chamber that pumps blood out of the heart
- 7. Stage of the heart cycle in which the heart is relaxed allowing it to fill with blood
- 8. The volume of blood pumped per minute by each ventricle of the heart
- 9. Cancer of the bone marrow which causes too many leukocytes to be produced
- 12. Conveys blood from the lungs to the heart
- 15. Organ system that transports materials such as nutrients, oxygen, and hormones to the cells and transports carbon dioxide and other wastes from the cells
- 16. Circulatory with a single pump and circuit; where blood passes from the sites of gas exchange to the rest of the body before returning to the heart
- 18. Heart chamber that receives blood from the veins
- 19. Rings of smooth muscle that regulate the flow of blood into capillary beds
- 21. Circulatory system that has a pulmonary and systemic circulation where the blood returns to the heart after each circuit, this allows good blood flow to everywhere in the body
- 22. Large vein that returns blood to the heart from the lower part of the body
- 25. Delays electrical impulses by 0.1 seconds before spreading them to both ventricles causing them to contract
- 27. A blood cell that functions in fighting infections; also called a leukocyte
- 30. Hormone that goes to tissues that don't recieve enough oxygen, it stimulates the production of erythrocytes
- 31. Large vein that returns oxygen-poor blood to the heart from the upper part of the body and head
- 33. The force that exerts against the walls of blood vessels
- 34. Frequency of heart contraction
- 35. A liquid matrix of the blood in which blood cells are suspended
- 39. Death of nervous tissue in the brain; usually the result of a ruptured or blocked artery in the head