Pharmacology Of The Airways Flashcards
What two effects does delivery of medications to the lungs have on the body
Direct effects
Systemic effects
Or both
Inhaled anesthetics are delivered via the lungs to act on ____ and have ____effects
Brain
Bronchodilatory
Aerosolized beta adrenergic agonist work on ____ and have very few ____effects
Bronchial smooth muscle
Systemic
Which system regulates airway caliber, airway glandular activity, and airway microvasculature
Parasympathetic
Which nerve provides preganglionic fibers, which synapse with postgamglionic fibers in airway parasympathetic ganglia
Vagus
What activated M3 receptor of postganglionic fiber
Acetylcholine
When acetylcholine activated M3 receptor of postganglionic of the parasympathetic nervous system to produce “this”
Bronchoconstriction
Even in the resting state what can anticholinergics provide
Bronchodilation
How does beta 2 receptors present on airway smooth muscle cells cause bronchodilation
Via stimulatory g mechanisms
Bronchomotor tone is influenced through nonadrenergic noncholinergic system- (NANC) what is its role
Excitatory and inhibitory neuropeptides that influence inflammation and smooth muscle tone- also not well understood-
What are the main two excitatory transmitters causing bronchoconstriction and neurogenic inflammation
Substance P
Neurokinin A
What are the two main inhibitory neurotransmitters causing airway smooth muscle relaxation
Vasoactive intestinal peptide
Nitric oxide