Neuromuscular control of airways Flashcards
1
Q
What does stimulation of post ganglionic parasympathetic fibres cause?
A
Bronchial smooth muscle contraction
Increased mucus secretion
2
Q
What is the parasympathetic neurotransmitter and receptor on airway smooth muscle and goblet cells?
A
Acetyl Choline
M3 muscarinic receptors
3
Q
What does stimulation of post ganglionic sympathetic fibres cause?
A
Bronchial smooth muscle relaxation
Decreased mucus secretions
Increased mucocillary clearance
Vascular smooth muscle contraction