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HLTH 125 > CH 7.2 & 7.3: Lymph & Immune Systems > Flashcards

CH 7.2 & 7.3: Lymph & Immune Systems Flashcards

1
Q

Define Allergen

A

Substance creating or producing a hypersensitivity (allergic) reaction

-gen = generate, create, produce
all- = other, strange
-erg- = work

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2
Q

Define Allergy / Allergic Reaction

A

Hypersensitivity to a particular allergen

-ergy = process of working
all- = other, strange

-ic = pertaining to

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3
Q

Define Intersitial

A

Pertaining to spaces within tissues between cells

-al = pertaining to
interstiti- = space between cells

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4
Q

Define Lymph

A

Clear fluid collected from the interstitial spaces of tissues and transported by lymph vessels to the venous circulation;

interstitial fluid become lymph when it enters the lymphatic capillaries

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5
Q

Define Lymphatic

A

Pertaining to lymph or the lymphatic system

-atic = pertaining to
lymph- = lymph

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6
Q

Define Lymphoid

A

Resembling lymphatic tissue

-oid = resembling
lymph- = lymph

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7
Q

Define Node

A

A circumscribed mass of tissue

(circ. = restricted within limits)

knot in Latin

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8
Q

Define Lymph Node

A

circular masses of tissue that work like filters against invading pathogens;

found in body, mostly in neck, axilla, and groin

node = knot
lymph = lymph

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9
Q

Define Pathogen

A

A disease-causing microorganism

-gen = produce, create
path/o- = disease

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10
Q

Define Immunity

A

State of being protected

-ity = condition
immun- = immune

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11
Q

Define Immunology

A

The science and practice of immunity and allergy

-logy = study of
immun- = immune

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12
Q

Define Immunologist

A

Specialist in the study of the immune system

-logist = one who studies, specialist
immun- = immune

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13
Q

Define Immunization

A

Administration of an agent to provide immunity

-ization = process of inserting or creating
immun- = immune

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14
Q

Define Adenoid

A

single mass of lymphoid tissue in the nasopharynx (area of throat at back of nasal cavity)

-oid = resemble
aden- = gland

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15
Q

Define Bacterium / Bacteria (pl)

A

Simple, single-celled microscopic organism(s)

a staff in Greek

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16
Q

Define Immunoglobulin (Ig)

A

A specific protein evoked by an antigen

-in = chemical compound, substance
immun/o- = immune
-globul- = protein, globular

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17
Q

Define Spleen

A

largest lymphatic organ

located in left upper quadrant of abdomen, vascular.

acts as reservoir for RBCs and platelets

Spleen in Greek

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18
Q

Define Splenomegaly

A

Enlargement of the spleen

-megaly = enlargement
splen/o- = spleen

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19
Q

Define Thymus

A

Endocrine gland located in the mediastinum; essential to building immunity

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20
Q

Define Tonsil

A

Mass of lymphoid tissue on either side of the throat at the back of the tongue

tonsill-, tonsill/o- = tonsil

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21
Q

Define Tonsillitis

A

Inflammation of the tonsil(s)

-itis = inflammation, infection

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22
Q

Define Tonsillectomy

A

surgical removal of a tonsil(s)

-ectomy = surgical excision (removal)

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23
Q

Define Inguinal

A

Pertaining to the groin

-al = pertaining to
inguin- = groin

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24
Q

Define Lymphadenectomy

A

Surgical excision (removal) of a lymph node(s)

-ectomy = surgical excision
lymphaden- = lymph node

25
Define Lymphadenitis
inflammation of a lymph node(s) -itis = inflammation lymphaden- = lymph node
26
Define Lymphadenopathy
Any disease process affecting the lymph node(s) -pathy = disease lymphaden- = lymph node
27
Define Lymphangiogram
radiographic images of lymph vessels and nodes following injection of contrast material -gram = recording lymphangi/o- = lymphatic vessels
28
Define lymphedema
An accumulation of fluid and tissue swelling due to obstruction of lymphatic flow -edema = swelling lymph- = lymph
29
Define edema
fluid retention; excessive accumulation of fluid in cells and tissues -edema = swelling (root only not suffix)
30
Define Lymphoma
Any malignant neoplasm (tumor) of lymphatic tissue -oma = tumor, mass lymph- = lymph, lymph system
31
Define Neoplasm
A new growth (can be either a benign or malignant tumor) neo- = new -plasm = to form
32
Define Virus
A group of non-living infectious agents that require a living host's cells for growth and reproduction
33
Define Antigen
A substance capable of triggering an immune response anti- = against -gen = create, produce
34
Define Antibody
A protein (immunoglobulin) produced in response to an antigen. All antibodies are immunoglobulins (Ig). body = body anti- = against
35
Define Autoimmune
A person's immune system reacts against it's own body tissues. auto- = self, same -immune = protected
36
Define Mutation
**Change in the chemistry of a gene;** A change in the structure or physiology of a bacteria in response to an antibiotic to change in Latin
37
Define Toxin
Poison; a poisonous substance formed by a cell or organism Poison in Greek
38
Define Attenuate
weaken the ability of an organism to produce disease -ate = composed of, pertaining to attenu- = weaken
39
Define Vaccination
Administration of a vaccine -ation = process vaccin- = vaccine, giving a vaccine
40
Define Vaccine
A preparation to generate active immunity; agent intended to prevent disease vaccin- = vaccine, giving a vaccine
41
Define Alloimmune
immune reaction directed against foreign tissue all/o- = other, strange -immune = immunity
42
Define Anaphylaxis
immediate, severe, allergic response ana- = excessive -phylaxis = protection
43
Define Anaphylactic
Pertaining to anaphylaxis -tic = pertaining to -phylac- = protect
44
Define Dormant
Inactive (phase of a pathogen, not cured) -ant = forming dorm- = sleep
45
Define Histamine
Compound liberated in tissues as a result of injury or an immune response; in most hypersensitivity reactions, allergens stimulate cells to produce histamine hist- = derived from histidine -amine = nitrogen-containing substance
46
Define Antihistamine
Drug used to treat allergic symptoms because of its action antagonistic to histamine anti- = against hist- = derived from histidine -amine = nitrogen-containing substance
47
Define Hypersensitivity
Allergic reaction; exaggerated, abnormal reaction to an allergen -ity = condition hyper- = excessive -senseitiv- = feeling
48
Define Immunodeficiency
Failure of the immune system because it is unable to provide appropriate protection -ency = quality, state of immun/o- = immune response -defici- = failure, lacking
49
Define Immunosuppression
Suppression of the immune system caused by an outside agent -ion = action, condition -suppress- = press under
50
Define Incubation
The dormant phase of a developing infection -action = process incub- = lie on, hatch
51
Define Opportunistic
An organism or a disease that invades the body because the person had a lowered resistance (compromised immune system) -istic = pertaining to opportun- = take advantage of
52
Define Resistance
Ability of an organism to withstand the affect of an antagonistic agent (ex. antibiotic resistance) -ance = state of, action re- = again -sist- = against, oppose
53
Define Urticaria
Hives (rash of itchy wheals - raised bumps) Nettle in Latin
54
Define Contagious
An infection that can be transmitted from person to person -ious = pertaining to con- = with, together -tag- = touch
55
Define Flora
Microorganisms that naturally exist on the internal/external surfaces of the body (help us maintain homeostasis) flower in Latin
56
Define Homeostasis
Stability of equilibrium -stasis = control, stop home/o- = same
57
Define Infect
To invade an organism by a microorganism invade internally in Latin infect- (root) = internal invasion
58
Define Nosocomial
An infection acquired while in the hospital -ial = pertaining to nos/o- = disease -com- = take care of

HLTH 125 (15 decks)

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