Superior and Posterior Mediastinum Session 5 Flashcards
contents of superior mediastinum (6)c
arotic arch SVC vagus nerve phrenic nerve trachea oesophagus
contents of anterior mediastinum
no major structures
contents of middle mediastinum (5)
heart ascending aorta pulmonary artery SVC phrenic nerve
contents of posterior mediastinum (5)
oesophagus thoracic aorta thoracic duct azygos veins thoracic sympathetic trunks
what level do vagus nerves pass through the diaphragm
T10
what vein does the thoracic duct drain into
into confluence of left subclavian and internal jugular vein on left of neck
what r the arteries and veins lying horizontally across vertebral bodies
intercostal vessels
what r the intercostals vessels drained by on the right and what system do they form
azygos
azygos system
what r the intercostals vessels drained by on the left and what system do they form
hemi-azygous
hemi-azygous system
where is the sympathetic chain
running across necks of ribs (anterior posterior of rib cage)
how many ganglia r there in the thorax, neck and abdomen/ pelvis
thorax= 12 (1 for each rib)
neck= 3
abdomen/ pelvis= 1 per vertebrae
where do the three splanchnic nerves form from together
thoracic vertebra 5-12
where does the intercostal neurovascular bundle located and what does it travel between
below the rib
between innermost intercostal and internal intercostal muscles
where is aspiration more common and why
right main bronchus
more vertical, wider and shorter than left
what structure is just behind the heart
oesophagus
