Across
- 3. Proteins produced by the immune system to identify and neutralize foreign objects like bacteria and viruses.
- 4. veins Veins located in the foot that help drain blood from the foot back to the heart.
- 7. The liquid component of blood that carries cells, nutrients, hormones, and waste products.
- 9. valve The valve that controls blood flow from the left ventricle into the aorta, the main artery supplying blood to the body.
- 11. vena cava A large vein that carries deoxygenated blood from the upper body to the right atrium of the heart.
- 15. The largest artery in the body, carrying oxygenated blood from the heart to the rest of the body.
- 17. veins Veins that drain deoxygenated blood from the lungs and bronchi back to the heart.
- 19. A red blood cell that transports oxygen and carbon dioxide in the blood.
- 20. cell A type of immune cell that remembers past infections to provide a quicker response upon re-exposure to the same pathogen.
- 21. A small vein that collects blood from capillaries and transports it to larger veins.
- 22. cell disease A genetic disorder that affects hemoglobin, causing red blood cells to become rigid and shaped like a sickle, leading to various health complications.
- 23. A white blood cell that is part of the immune system, helping the body fight infections and other diseases.
- 24. A fluid connective tissue that transports oxygen, nutrients, hormones, and waste products throughout the body.
- 26. vena cava A large vein that carries deoxygenated blood from the lower body to the right atrium of the heart.
- 27. One of the two upper chambers of the heart that receives blood from the body and lungs.
- 29. valve Also known as the mitral valve, it is located between the left atrium and left ventricle, allowing blood to flow in one direction.
Down
- 1. valve The valve between the left atrium and left ventricle that prevents backflow of blood.
- 2. artery A major artery supplying blood to the thigh and leg.
- 5. cycle The sequence of events in one heartbeat, including contraction and relaxation of the heart chambers.
- 6. rate The number of times the heart beats per minute, an important indicator of cardiovascular health.
- 8. The process that prevents and stops bleeding, involving blood vessel constriction, platelet plug formation, and blood coagulation.
- 9. A blood vessel that carries oxygenated blood away from the heart to the rest of the body.
- 10. block A condition where the electrical signals in the heart are delayed or blocked, affecting the heart's rhythm.
- 12. pressure The force exerted by circulating blood on the walls of blood vessels, measured as systolic over diastolic pressure.
- 13. Small cell fragments in the blood that play a crucial role in blood clotting.
- 14. A tiny blood vessel where the exchange of oxygen, carbon dioxide, nutrients, and waste occurs between blood and tissues.
- 16. The outer portion of the atrium, which helps increase the volume of blood the heart can hold.
- 18. A protein in red blood cells that carries oxygen from the lungs to the rest of the body and returns carbon dioxide to be exhaled.
- 25. skeleton A fibrous structure that provides support and electrical insulation for the heart, separating the atria from the ventricles.
- 28. A blood vessel that carries deoxygenated blood toward the heart.