Question

Date allergy t Bio 115 Name Use this word hank to fill in the blanks in the following paragraphs. + inflammatory * cellular * antibodies chemical * lymphocytes * humoral cytokines * macrophage * antigen cytotoxic T lymphocytes * macrophages antigen * memory * fever * B cell * helper T * natural killer cells * B cells histamine neutralize + bacteria * infection * non-specific * pathogen physical *plasma B * specific * Vaccine * viruses * white blood and A disease-causing agent known as an lathogen invades your body and causes a[n) 2. Your body has three lines of defense. The first line are the 3. barriers such as skin, hair and mucus, and the 4. barriers such as sweat and tears, all of which keep germs from entering your body. These defenses are considered 5. because they do not distinguish one invader from another. Your body's second line of defense includes non-specific 6._ ur body's second line of defense includes non-specific 6. cells, also called 7. that attack the invaders. The cells that attack by eating the germs are called 8. The cells that destroy the infected cells are called 9. - The second line also includes the 10. response, which releases chemical signals called 11._ _. This causes redness, swelling, and pain at the injury site. If the invader spreads throughout your blood, your body reacts by creating a(n) 12. which stops it from growing by denaturing its proteins with heat. The third line of defense is considered 13. _because it is customized. This includes the 14. immune response that involve the B cells, whose job is to stop 15, from spreading. A 17. _ is triggered to divide and clone 18._ cells when it recognizes the germ by it's surface protein, the 19. These cells, in turn, produce large numbers of 20. that get released throughout the body to 21. the invaders. The 22. immune response involves the T cells and relies on the 23. cell to recognize the 24. _that is worn on the surface of the 25. after it devours an invader. This triggers the release of a chemical called 26. , which signals the 27._ to immobilize the invaders and the 28. to kill the body's infected cells. Once the body has gotten rid of the germs, 29. cells patrol the body which allows it to have resistance to that particular germ if it should meet up with it again. Humans use this knowledge to build immunity against some diseases by injecting themselves with dead or weakened microbes called a(n) Sometimes, the body can develop a(n) 31. when it makes the wrong antibodies and ends up with a hypersensitive response. 30.

Answer 1

1. Pathogen
A disease-causing agent = Pathogen
Ex: Bacteria, virus, and fungi

2. Infection
A pathogen causes infection of the host tissue by colonizing it

3. Physical
The first line of defense is the nonspecific innate barriers such as skin, hair, and mucus

4. Cilia
The first line of defense includes skin, hair, mucus, tears, cilia, and stomach acid

5. Chemical
Chemical barriers include sweat and tears

6. Nonspecific
Physical and chemical barriers are nonspecific