Thorax Flashcards
Aortic hiatus strictures and relations
from right to left on the right side
azygos vein - thoracic duct - descending aprta
Relation throacic dict and oesophagus
Thiracic duct - enters throax at t12 -> lies posterior to oesophagus for most of its intrathoracic course passes to left at t5 (level of angle kf louis
Diaphragm and stuctures pasaing
I ate 10 eggs at 12
IVC T8
t10 oesophagus
aorta / aortic hiatus t12
GlFascia encases the apex of lungs
Sibsons fascia
Fascia encountered during a illary mode clearance
Clavipectoral fascia - under clavicular portion of pec major
Boundaries of safe triangle for chest drain insertion?
Mid axillary line of the 5th intercostal space
Bordered by
Anterior edge of latissimus dorsi
lateral border of pect major
line superior to horizontal level of the nipple
apex below the axilla
Intercostal spaces and related neurovasculature
Superiorly to inferiorly
posterior intercostal vein
aretey
nerve
How many collateral circulations exist in case of superior vena cava obstruction?
Azygos vein
Internal mammary venous pathway
long thoracic venous system 2 pathways
thus 4 in total
Crutch palsy?
Radial nerve palsy -> wrist drop
MEDIASTINUM ANATOMY AND DEVISIONS
SUPERIOR VENA CAVA FORMATION
deoxygenated blood returned from right and left brachiocephalic veins that join to form svc
Relation of oeaophagus and descending aorta in thorax
Descending aorta lies posteriorly and to the left of the oesophagus
Azygos system of veins
Azygos vein - R lumbar and subcostal vein - enters via aortic hiatus + drains into svc
Hemiazygos vein - union of left lumbar vein and subcostal - entera theough left crus - at t8 turns to right and conbines with azygos
Accessory hemiazygos vein - fromed by 4-8 intercostal veins - drains into azygos vein at T7
Right main bronchus level
T6
What is located above the rith lung hilum?
Azygos vein
Superior to the groove is the svc and right innominate vein
THE ROOT OF THE RIGHT LUNG LIES BEHIND THE SVC AND THE RIGHT ATRIUM - BELOW THE AZYGOS VEIN
