Bronchodilators

Question 1

what do bronchodilators do

Answer 1

relax smooth muscles (prevent contraction)

Question 2

three ways that respiratory smooth muscle contraction happens

Answer 2

parasympathetic
sympathetic
release of histamines

Question 3

how does parasympathetic respiratory smooth muscle contraction happen

Answer 3

release acetylcholine
inhibit acetylcholinesterase

Question 4

how does sympathetic respiratory smooth muscle contraction happen

Answer 4

block beta 2

Question 5

how does release of histamines smooth muscle contraction happen

Answer 5

H1 receptors

Question 6

when are cholinergic blockers used for bronchodilators

Answer 6

organophosphate toxicity

Question 7

which class of bronchodilator also stabilize mast cells and reduce the amount of histamine released

Answer 7

beta 2 adrenergic agonists

Question 8

when should epinephrine be used as a bronchodilator

Answer 8

in ER situation

Question 9

what species is clenbuterol used in

Answer 9

horses

Question 10

what do methylxanthines inhibit

Answer 10

phosphodiesterase (vasoconstriction enzyme)

Question 11

trivia fact: two other popular human substances that are methylxanthins

Answer 11

caffeine
theobromine (toxic part of chocolate!)