24.9: Key Terms
- Page ID
- 111520
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\(\newcommand{\avec}{\mathbf a}\) \(\newcommand{\bvec}{\mathbf b}\) \(\newcommand{\cvec}{\mathbf c}\) \(\newcommand{\dvec}{\mathbf d}\) \(\newcommand{\dtil}{\widetilde{\mathbf d}}\) \(\newcommand{\evec}{\mathbf e}\) \(\newcommand{\fvec}{\mathbf f}\) \(\newcommand{\nvec}{\mathbf n}\) \(\newcommand{\pvec}{\mathbf p}\) \(\newcommand{\qvec}{\mathbf q}\) \(\newcommand{\svec}{\mathbf s}\) \(\newcommand{\tvec}{\mathbf t}\) \(\newcommand{\uvec}{\mathbf u}\) \(\newcommand{\vvec}{\mathbf v}\) \(\newcommand{\wvec}{\mathbf w}\) \(\newcommand{\xvec}{\mathbf x}\) \(\newcommand{\yvec}{\mathbf y}\) \(\newcommand{\zvec}{\mathbf z}\) \(\newcommand{\rvec}{\mathbf r}\) \(\newcommand{\mvec}{\mathbf m}\) \(\newcommand{\zerovec}{\mathbf 0}\) \(\newcommand{\onevec}{\mathbf 1}\) \(\newcommand{\real}{\mathbb R}\) \(\newcommand{\twovec}[2]{\left[\begin{array}{r}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\ctwovec}[2]{\left[\begin{array}{c}#1 \\ #2 \end{array}\right]}\) \(\newcommand{\threevec}[3]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\cthreevec}[3]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \end{array}\right]}\) \(\newcommand{\fourvec}[4]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\cfourvec}[4]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \end{array}\right]}\) \(\newcommand{\fivevec}[5]{\left[\begin{array}{r}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\cfivevec}[5]{\left[\begin{array}{c}#1 \\ #2 \\ #3 \\ #4 \\ #5 \\ \end{array}\right]}\) \(\newcommand{\mattwo}[4]{\left[\begin{array}{rr}#1 \amp #2 \\ #3 \amp #4 \\ \end{array}\right]}\) \(\newcommand{\laspan}[1]{\text{Span}\{#1\}}\) \(\newcommand{\bcal}{\cal B}\) \(\newcommand{\ccal}{\cal C}\) \(\newcommand{\scal}{\cal S}\) \(\newcommand{\wcal}{\cal W}\) \(\newcommand{\ecal}{\cal E}\) \(\newcommand{\coords}[2]{\left\{#1\right\}_{#2}}\) \(\newcommand{\gray}[1]{\color{gray}{#1}}\) \(\newcommand{\lgray}[1]{\color{lightgray}{#1}}\) \(\newcommand{\rank}{\operatorname{rank}}\) \(\newcommand{\row}{\text{Row}}\) \(\newcommand{\col}{\text{Col}}\) \(\renewcommand{\row}{\text{Row}}\) \(\newcommand{\nul}{\text{Nul}}\) \(\newcommand{\var}{\text{Var}}\) \(\newcommand{\corr}{\text{corr}}\) \(\newcommand{\len}[1]{\left|#1\right|}\) \(\newcommand{\bbar}{\overline{\bvec}}\) \(\newcommand{\bhat}{\widehat{\bvec}}\) \(\newcommand{\bperp}{\bvec^\perp}\) \(\newcommand{\xhat}{\widehat{\xvec}}\) \(\newcommand{\vhat}{\widehat{\vvec}}\) \(\newcommand{\uhat}{\widehat{\uvec}}\) \(\newcommand{\what}{\widehat{\wvec}}\) \(\newcommand{\Sighat}{\widehat{\Sigma}}\) \(\newcommand{\lt}{<}\) \(\newcommand{\gt}{>}\) \(\newcommand{\amp}{&}\) \(\definecolor{fillinmathshade}{gray}{0.9}\)- adrenergic agent
- pharmacological agent that acts as a mucosal vessel vasoconstrictor
- allergen
- foreign substance that is usually harmless
- allergic disorder
- common pathological condition due to IgE-dependent immunological reactions to an allergen
- allergic rhinitis
- localized allergic reaction in the sinuses
- allergy
- inappropriate or exaggerated responses of the immune system to a foreign substance that is usually harmless
- anaphylaxis
- potentially life-threatening, type I hypersensitivity response resulting from the rapid release of IgE-mediated chemicals in an attempt to eliminate a triggering allergen
- angioneurotic edema
- condition that is characterized by urticaria and diffuse swelling of the deeper skin layers
- antibody
- protein substance that protects against antigens
- antihistamine
- H1 receptor antagonist
- Arthus reaction
- acute, localized inflammatory response that typically occurs after vaccination
- atopic march
- typical progression of allergic disease that begins early in life
- atopy
- genetic tendency to develop allergic diseases
- B cell
- regulatory cell in the immune system; also called B lymphocyte
- bradykinin
- chemical mediator that stimulates nerve fibers and causes pain
- eosinophil
- leukocyte that protects the body from parasites, allergens, and other organisms
- epicutaneous
- on the skin
- haptens
- incomplete antigens
- hemorrhagic bullae
- blood-filled blisters
- hypersensitivity
- abnormal heightened response to any type of stimulus
- immunoglobulin
- protein capable of acting as an antibody
- latex
- substance made from natural protein derived from the sap of the rubber tree
- leukotriene
- chemical mediator that initiates the inflammatory response
- malar rash
- butterfly rash
- mast cell
- specialized type of white blood cells that are found throughout the body
- papule
- solid or cystic raised spot on the skin
- Peyer patches
- small groupings of lymphoid follicles in the small intestine
- prostaglandin
- unsaturated fatty acid with a wide range of biologic activity
- rhinorrhea
- runny nose
- sensitization
- process in the allergic response where IgE antibodies attach to receptors on the surface of immune cells after an allergen has been introduced
- serotonin
- chemical mediator that acts as a forceful vasoconstrictor and bronchoconstrictor and is formed in platelets
- T cell
- cell that assists B cells in the immune response; also called T lymphocyte
- urticaria
- type I hypersensitivity allergic reaction involving the skin and characterized by wheals
- urticarial vasculitis
- inflammation of the small vessels of the skin
- vesicle
- thin-walled sac filled with fluid