Lymphatic and Immune Systems Flashcards Preview

Medical Terminology > Lymphatic and Immune Systems > Flashcards

Flashcards in Lymphatic and Immune Systems Deck (23):
1

immun/o

protection

2

lymph/o

lymph

3

lymphaden/o

lymph node (gland)

4

splen/o

spleen

5

thym/o

thymus gland

6

tox/o

poison

7

ana-

again, anew

8

inter-

between

9

adaptive immunity

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

10

adenoids

mass of lymphatic tissue in the nasopharynx

11

antibody

protein produced by B cells to destroy antigens

12

antigen

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

13

axillary nodes

lymph nodes in the armpit

14

B cell (lymphocyte)

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.

15

cell-mediated immunity

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

16

cervical nodes

lymph nodes in the neck region

17

complement system

proteins in the blood that help antibodies kill their target

18

cytokines

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

19

cytotoxic T cell

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

20

dendritic cell

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

21

helper T cell

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

22

humoral immunity

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

23

immunity

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