Lymphatic and Immune Systems

Question 1

immun/o

Answer 1

protection

Question 2

lymph/o

Answer 2

lymph

Question 3

lymphaden/o

Answer 3

lymph node (gland)

Question 4

splen/o

Answer 4

spleen

Question 5

thym/o

Answer 5

thymus gland

Question 6

tox/o

Answer 6

poison

Question 7

ana-

Answer 7

again, anew

Question 8

inter-

Answer 8

between

Question 9

adaptive immunity

Answer 9

the ability to recognize and remember specific antigens and mount an attack on them. Humoral (B cells) and cell-mediated immunity (T cells) are examples

Question 10

adenoids

Answer 10

mass of lymphatic tissue in the nasopharynx

Question 11

antibody

Answer 11

protein produced by B cells to destroy antigens

Question 12

antigen

Answer 12

Substance that the body recognizes as foreign; evokes an immune response. Most antigens are proteins or protein fragments found on the surface of bacteria, viruses, or organ transplant tissue cells

Question 13

axillary nodes

Answer 13

lymph nodes in the armpit

Question 14

B cell (lymphocyte)

Answer 14

lymphocyte that matures into a plasma cell to secrete antibodies. The B refers to the bursa of Fabricius, an organ in birds in which B ell differentiation and growth were first noted to occur.

Question 15

cell-mediated immunity

Answer 15

t cells (cytotoxic, helper and suppressor) that respond to antigens and destroy them; a type of adaptive immunity

Question 16

cervical nodes

Answer 16

lymph nodes in the neck region

Question 17

complement system

Answer 17

proteins in the blood that help antibodies kill their target

Question 18

cytokines

Answer 18

proteins secreted by cytotoxic T cells to aid in antigen destruction. Examples are interferons and interleukins

Question 19

cytotoxic T cell

Answer 19

lymphocyte that directly kills antigens; called CD8-positive T cell

Question 20

dendritic cell

Answer 20

antigen-presenting cell. Shows T and B cells what to attack

Question 21

helper T cell

Answer 21

lymphocyte that aids B cells and stimulate T cells. Also called CD4-positve T cell

Question 22

humoral immunity

Answer 22

B cells produce antibodies after exposure to specific antigens; type of adaptive immunity

Question 23

immunity

Answer 23

body’s ability to resist foreign organisms and toxins that damage tissues and organs. This includes natural immunity and adaptive immunity. the word immunity comes from Latin immunis, meaning exempt or protected from