Lymphatic System & Immunity

Question 1

leukocytes

Answer 1

Blood cells involved in defending the body against infective
organisms and foreign substances. Neutrophils, eosinphils, basophils, lymphocytes, and monocyctes.

Question 2

innate immunity

Answer 2

Quick and non-specific form of immunity, providing a generalized protection from most intruding organisms and
toxins.

Question 3

adaptive immunity

Answer 3

Immunity provided by specific immune responses that mature throughout life; involves B cells and T cells.

Question 4

interleukins

Answer 4

Any of a class of glycoproteins produced by leukocytes for
regulating immune responses by leukocytes.

Question 5

lymph

Answer 5

Fluid that is filtered out of the blood, similar to plasma but
containing white blood cells (lymphocytes) and chyle.

Question 6

spleen

Answer 6

Largest lymphatic organ, produces blood cells, destroys
damaged blood cells, stores blood cells.

Question 7

inflammation

Answer 7

A reaction to injury or infection that is characterized by pain, redness, and swelling.

Question 8

macrophage

Answer 8

Large phagocyte found in lymph nodes and other tissues of the body, engulfs pathogens and other materials.

Question 9

dendritic cells

Answer 9

Specialized white blood cells that patrol the body searching for antigens that produce infections, capture antigens
and deliver them to lymph nodes.

Question 10

natural killer cells

Answer 10

White blood cells that kill or destroy body cells that are
infected with a virus. Non-specific.

Question 11

antibodies

Answer 11

A blood protein produced by B lymphocytes in response to and counteracting a specific antigen.

Question 12

antigens

Answer 12

Foreign substances that trigger the attack of antibodies in the immune response.

Question 13

humoral immunity

Answer 13

Immune response in which B cells transform into plasma
cells and secrete antibodies.

Question 14

cell-mediated immunity

Answer 14

Immune response produced by cytotoxic T cells that attack
infected or abnormal body cells.

Question 15

helper T-cells

Answer 15

Activate B and T cells; control or limit specific immune response.

Question 16

B-cells

Answer 16

Lymphocytes which produce antibodies to destroy antigens

Question 17

cytotoxic T-cells

Answer 17

A type of lymphocyte that kills infected body cells and cancer cells. Specific.

Question 18

histamine

Answer 18

Chemical stored in mast cells that triggers dilation and
increased permeability of capillaries.

Question 19

interferon

Answer 19

Non-specific blood protein that blocks viral protein synthesis and activates natural killer cells and macrophages.

Question 20

autoimmune

Answer 20

Diseases in which the body makes antibodies directed
against its own tissues

Question 21

allergy

Answer 21

A specific reaction of the immune system to a foreign and
frequently harmless substance

Question 22

passive immunity

Answer 22

Temporary immunity in which antibodies are given to a person rather than produced within the person’s own body.