Posterior Mediasternum Flashcards
What’s does the posterior mediasternum contain
STOPAD
Synoathetic trunk + splanchnic nerves
Thoracic duct
Oesophagus
Posterior intercostal vessels and nerves
Azygous veins
Defending aorta
What branches does the descending aorta give rise to
BOPPP
Bronchial arteries
Oesophageal branches
Phrenic branches
Pericardial posterior intercostal artery
What veins arise in the abdomen at L1/L2 and transverse a the diaphragm to enter the posterior mediastinum
Azygous
When Azygous veins drains blood from posterior thoracic wall and returns it to ___ _____
Superior vena cava
Where do Azygous veins lie
Bodies of T vertebrae
Which 3 veins do Azygous veins receive blood from
BOP
Bronchial
Oesophagus
Posterior intercostal
Does the Oesophagus lie L or R to aorta
R
Which artery is the Oesophagus supplied by
Oesophageal artery (from descending aorta)
Where does oesophageal veins return blood
Azygous system
What type of muscle does the oesophagus have
Smooth automatic
What structure does the oesophagus pass through in the diaphragm and at what T level
Oesophageal hiatus
T10
Where does the thoracic duct lie
Between Azygous vein and aorta
Where does lymph from lower half of body flow towards
Cisterna chyli
Where does thoracic duct receive lymph from
Intercostal space
Lymph nodes
The duct ascends into the ____, receiving lymph from the lest side of the ____ side of the head and mech and the upper left limb
Neck
Left
Where does thoracic ducat terminate
Venous system between LIJ (left internal jugular) and LSV (left subclavian vein)
The right side of the head and neck and upper right are drained by ____ ____ and enter the venous system at the junction of R ______ ____ and R _____ _____
Lymphatic ducts
Right internal jugular
Right subclavian veins
Where do the sympathetic trunk lie
~Posterior to thoracic wall
~on either side or vertabral column
~Posterior to parietal pleura
Do sympathetic trunks have transverse or longitudinal fibre tracts
Longitudinal
Are sympathetic trunks regularly interspersed with ganglia
Yes
Where do sympathetic trunks start and Finnish
Base skull to coccyx
Preganglionic sympathetic fibres exit the spinal cord in which spinal nerves
T1-L2/3
