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Pharmacology Ch. 37
Chapter 37 Bronchodilators and other respiratory drugs vocabulary
14
Pharmacology
Undergraduate 3
10/17/2013

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Term

Allergen

Definition
Any substance that evokes an allergic response.
Term

Allergic asthma

Definition
Bronchial asthma caused by hypersensitivity to an allergen or allergens.
Term

Alveoli

Definition
Microscopic sacs in the lungs where oxygen is exchanged for carbon dioxide; also called air sacs.
Term

Antibodies

Definition
Immunoglobulins produced by lymphocytes in response to bacteria, viruses, or other antigenic substances.
Term

Antigen

Definition
A substance (usually a protein) that causes the formation of an antibody and reacts specifically with that antibody.
Term

Asthma attack

Definition
The onset of wheezing together with difficulty breathing.
Term

Bronchial asthma

Definition
The general term for recurrent and reversible shortness of breath from narrowing of the bronchi and bronchioles; it is often referred to simply as asthma.
Term

Bronchodilators

Definition
Medications that improve airflow by relaxing bronchial smooth muscle cells (e.g., xanthines, adrenergic agonists).
Term

Chronic bronchitis

Definition
Chronic inflammation of the bronchi.
Term

Emphysema

Definition
A condition of the lungs characterized by enlargement of the air spaces distal to the bronchioles.
Term

Immunoglobulins

Definition
Proteins belonging to any of five structurally and antigenically distinct classes of antibodies present in the serum and external secretions of the body; they play a major role in immune responses; immunoglobulin is often abbreviated Ig.
Term

Lower respiratory tract (LRT)

Definition
The division of the respiratory system composed of organs located almost entirely within the chest.
Term

Status asthmaticus

Definition
A prolonged asthma attack.
Term

Upper respiratory tract

Definition
The division of the respiratory system composed of organs located outside the chest cavity (thorax).
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