Digestive System and Oral Physiological Phenomena
Reproductive and Urinary Physiological Phenomena
Musculoskeletal and Neural Physiological Phenomena
Circulatory and Respiratory Physiological Phenomena
Integumentary System Physiological Phenomena
Sports Nutritional Physiological Phenomena
Reproductive Physiological Phenomena
Physiological Phenomena
Elder Nutritional Physiological Phenomena
Urinary Tract Physiological Phenomena
Digestive System Physiological Phenomena
Ocular Physiological Phenomena
Nervous System Physiological Phenomena
Respiratory Physiological Phenomena
Skin Physiological Phenomena
Plant Physiological Phenomena
Cardiovascular Physiological Phenomena
Maternal Nutritional Physiological Phenomena
Nutritional Physiological Phenomena
Methacholine Chloride
A quaternary ammonium parasympathomimetic agent with the muscarinic actions of ACETYLCHOLINE. It is hydrolyzed by ACETYLCHOLINESTERASE at a considerably slower rate than ACETYLCHOLINE and is more resistant to hydrolysis by nonspecific CHOLINESTERASES so that its actions are more prolonged. It is used as a parasympathomimetic bronchoconstrictor agent and as a diagnostic aid for bronchial asthma. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1116)
Urea
Methacholine Compounds
Asthma
Forced Expiratory Volume
Measure of the maximum amount of air that can be expelled in a given number of seconds during a FORCED VITAL CAPACITY determination . It is usually given as FEV followed by a subscript indicating the number of seconds over which the measurement is made, although it is sometimes given as a percentage of forced vital capacity.
Bronchoconstriction
Vibration
Hand-Arm Vibration Syndrome
An occupational disorder resulting from prolonged exposure to vibration, affecting the fingers, hands, and forearms. It occurs in workers who regularly use vibrating tools such as jackhammers, power chain saws, riveters, etc. Symptoms include episodic finger blanching, NUMBNESS, tingling, and loss of nerve sensitivity.