Gross anatomy of the lungs and mediastinum L4 Flashcards
visceral pleura
covers the surface of the lungs
parietal pleura
lines the pulmonary cavities
where do the pleural membranes join
at the hilum
recesses=
space between visceral and parietal pleura
three recesses
costomediastinal reces
costodiaphragmatic recess
cardiophrenic recess
apex of the lung
extends into the root of the neck
base of the lung
sits on the diaphragm
costal surface of the lungs
in contact with the ribs
mediastinal surface of the lungs
in contact with the mediastinum
diaphragmatic surface of the lungs
in contact with the diaphragm
hilus=
the place where structures enter and leave the lung
which lung has a single oblique fissure
left lung
which lung has a horizontal and oblique fissure
right
which lung has three lobes
right
name three structures that enter and leave the hilum
pulmonary artery
pulmonary vein
principal bronchus
What blood does the pulmonary vein carry
returns oxygenated blood to the heart
what blood does the pulmonary arteries carry
carry blood to the lungs for oxygenation
what supplies the lung parenchyma with O2
bronchial arteries from the aorta
RALS=
the right artery is anterior to the bronchus in the right hilum but superior to it in the left
Where is the pulmonary vein in the hilum
always inferior
4 contents of the superior mediastinum
aortic arch
trachea
oesophagus
vagus and phrenic nerves
3 contents of the anterior mediastinum
connective tissue
lymph nodes
ligaments
3 contents of the middle mediastinum
pericardium
heart
phrenic nerve
4 contents of the posterior mediastinum
oesophagus
vagus nerve
descending thoracic aorta
thoracic duct
