Lung supply
arterial
venous i.e. oxygenated blood
lymphatic
It all heads centrally.. .
tracheobronchial nodes
join with parasternal and brachiocephalic nodes to from L and R bronchomediastinal trunks
with exceptions for L superior lobe
L superior lobe drains to
- bronchopulmonary
- inferior tracheobronchial (carinal)
- L superior tracheobronchial
- L paratracheal
THEN to thoracic duct → brachiocephalic vein
L inferior lobe drains to bronchopulmonary and inferior tracheobronchial (carinal), then follows R lung drainage route
(Netters)
bronchial innervation
somatic
pain, cough, stretch - afferent fibres via vagus nerve
sympathetic
- T2-6 sympathetic fibres
parasympathetic
- via Vagus nerve
- stimulates bronchial secretions, bronchial smooth muscle contraction
- pulmonary vasodilation
source/links
Gray's, Netter's