Across
- 1. T Cells divide and differentiate into memory cells and into effector cells that help activate cytotoxic T and B cells
- 4. a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus
- 6. is the entrance of food in the digestive tract
- 7. when dehydrated these receptor cells in hypothalamus to send impulses in the posterior pituitary gland
- 11. are predators or scavengers that eat the flesh of other animals
- 12. is an immune reaction to a harmless substance
- 14. the 3rd stage where the nutrients enter the cells lining the digestive tract and move into the bloodstream to be transported
- 19. any molecule that stimulates an immune reaction by B and T cells
- 20. is a condition in which the immune system lacks one or more essential components.
- 25. the chamber in heart where blood exits
- 26. the protein that carries oxygen
- 27. is a substance that stimulates active immunity against a pathogen without causing illnesses
- 28. is the liquid matrix of blood
Down
- 2. is the elimination of theses metabolic wastes
- 3. the most common measure, is equal to weight/height^2
- 5. are Y-shaped proteins that recognize specific antigens.
- 7. a reaction in which the cells clumped together
- 8. an organ is a pump that keeps the blood moving through these vessels
- 9. also known as a leukocyte which are suspended in blood plasma and occupy the interstitial fluid between cells
- 10. the colorless fluid of the lymphatic system, forms when plasma seeps out of blood vessel into intestinal fluid
- 13. Juice a mixture of water, mucus, salts, hydrochloric acid, and enzymes
- 15. is an immediate, localized reaction to an injury or to any pathogen that breaches the body's barriers
- 16. substances required for metabolism, growth, maintenance, and repair
- 17. is the fluid of the circulatory system
- 18. are saucer-shaped disks that participate in the exchange of oxygen and carbon dioxide
- 21. are small, colorless cell fragments that participate in blood clotting
- 22. small intestine's lining; tiny fingerlike projections that absorb nutrients
- 23. cancers in which bone marrow overproduces white blood cells
- 24. uses inorganic raw materials like water and carbon dioxide to make its own food.
- 27. Cava a large vein carrying deoxygenated blood into the heart