Abo_shousha_mod8_quiz_1_autacoids1

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1. The drug that can directly release histamine from mast cells without involving antigen-antibody reaction is:

Aspirin

Procaine

Morphine

Sulfadiazine

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Contract bronchial smooth muscle

Stimulate sensory nerve endings in the skin

Relax gastrointestinal smooth muscle

Stimulate gastric acid secretion

Release of EDRF from vascular endothelium resulting in vasodilatation

Direct action on vascular smooth muscle causing vasodilatation

Bronchoconstriction

Release of catecholamines from adrenal medulla

Some histamine H1 receptor antagonist are used in prophylaxis and treatment of motion sickness

Histamine H2 receptor antagonists are potentially useful in treatment of gastric hyper secretory state

Chlorphineramine possesses anti-emetic, sedative and anti-muscarinic activity

Histamine H1 receptor antagonists inhibit the release of histamine

Driving motor vehicles

Consuming processed cheese

Strenuous physical exertion

All of the above

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