Circulatory System

2. deoxyribonucleic acid is a long molecule that contains our unique genetic code.
4. provides the functional blood supply to all body tissue
8. A thin tube that carries lymph (lymphatic fluid) and white blood cells through the lymphatic system.
9. a type of white blood cell responsible for creating antibodies
11. A small crescent-shaped flaps of tissue, that help prevent a backflow of blood.
14. pieces of very large cells in the bone marrow called megakaryocytes.
15. the hollow opening or the space inside the blood vessel.
16. circulatory system in which the blood makes two distinct circuits
17. heart chamber that receives blood into the heart and drives it into a ventricle, or chamber, for pumping blood away from the heart.
18. an organ that pumps blood through your body.
21. a protein produced by the body's immune system when it detects harmful substances, called antigens
23. a light amber-colored liquid component of blood in which blood cells are absent, but contains proteins and other constituents of whole blood in suspension.
25. Any substance that causes the body to make an immune response against that substance

1. the smallest blood vessels that exist throughout your body. They transport blood, nutrients and oxygen to cells in your organs and body systems.
3. large blood vessels that carry blood from your heart to your kidneys
5. dividing wall between two chambers, such as that between the nostrils or the chambers of the heart
6. the largest artery of the body and carries blood from the heart to the circulatory system
7. blood that has been exposed to oxygen in the lungs
10. the main chamber of your heart, responsible for pumping oxygen-rich blood into your aorta
12. The soft, spongy tissue that has many blood vessels and is found in the center of most bones
13. carry blood from the right side of the heart to the lungs
14. a type of white blood cell responsible for fighting germs
19. A large vein that carries blood to the heart from other areas of the body
20. a group of cells that have similar structure and that function together as a unit
22. movement of anything generally from a region of higher concentration to a region of lower concentration
24. carries deoxygenated blood towards your heart and are often located close to your skin