Unit 11 Lymphatic and Immune systems

Question 1

Immunity

Answer 1

the ability to react to antigens so the body remains free of disease

Question 2

antigens

Answer 2

foreign invaders such as bacteria, viruses, and parasites, as well as body cells that are cancerous

Question 3

lymphadeitis

Answer 3

infection that causes swelling and tenderness of nearby lynch nodes

Question 4

lymphoma

Answer 4

cancer of lymphatic tissue

Question 5

lymph nodes

Answer 5

small oval structures occur along lymphatic vessels

Question 6

interferon

Answer 6

protein produced by virus-infected body cells

Question 7

clonal selection theory

Answer 7

states that one particular lymphocyte in a clone is selected to respond because its antigen receptors combine the antigen

Question 8

interleukins

Answer 8

cytokines produced by various white blood cells

Question 9

vaccines

Answer 9

substance that contain an antigen to which the immune system responds to

Question 10

anaphylactic shock

Answer 10

IgE mediated allergic response that occurs because the allergen has entered the blood stream

Question 11

opportunistic infection

Answer 11

infection that occurs because the immune system is severely weakened

Question 12

appendix

Answer 12

small tubular appendage that extends outward from the cecum of the large intestine

Question 13

palatine tonsil

Answer 13

either of two small almond shaped masses located on either side of the oropharynx

Question 14

elephantiasis

Answer 14

swelling of arms legs or external genitalia due to failure of the lymphatic system to remove excess fluid

Question 15

capsid

Answer 15

the protein shell of a virus particle that surrounds its nucleic acid

Question 16

macrophage

Answer 16

enlarged monocyte that ingests foreign material and cellular debris

Question 17

natural killer cells

Answer 17

lymphocyte that causes an infected or cancerous cell to burst

Question 18

retrovirus

Answer 18

any of the family of single stranded RNA viruses

Question 19

gamma globulin

Answer 19

most common form of plasma protein; a protein fraction of blood rich in antibodies

Question 20

severe combined immunodeficiency disease (SCID)

Answer 20

congenital illness in which both antibody and cell mediated immunity are lacking or inadequate