Lecture 14- Superior and Posterior Mediastinum Flashcards
The thymus, SVC/great vessels, aortic arch/great aa., vagus n, phrenic n, trachea, esophagus and thoracic duct are all present in the…
superior mediastinum
Th aortic arch begins and ends at the
T4/5 level or sternal angle
the aortic arch arches over the …. and…
left main bronchus and pulmonary trunk
which esophageal hiatus can risk gastric blood supply?
type 2- paraesophageal
fundus
Which esophageal hiatus is most common
type 1- sliding hiatal hernia
thoracic splanchnic arre what kind of innervation
sympathetics
The left vagus nerve becomes …. trunk due to rotation of gut during development
anterior vagal trunk
The right vagus nerve becomes the …. trunk due to rotation of gut during development
posterior vagal trunk
The…. vein drains intercostal vv. from right side of thorax and drain into SVC
azygos
The azygos vein is formed from… vein and… vein and picks up intercostal vv. on the way
right ascending lumbar
right subcostal
The azygos vein arches over…. to drain into SVC
R. superior bronchus
THe…. drain left thorax and drain into azygos v.
hemiazygos and accessory hemiazygos
The …. gives rise to posterior intercostal aa. supplying thorax
descending aorta
Arterial: The… has branches to trachea, bronchi and esophagus
desc. aorta
The thoracic duct is posterior to… and anterior to…
esophagus
vertebral bodies
thoracic duct is between … vein and …
azygos v. and desc. aorta
THe thoracic duct enters the venous angle between…
L. subclavian and left IJV
… is the accumulation of lymph in the pleural cavity
chylothorax
A chlothorax results from…
torn or leaking thoracic duct often from lymphoma or trauma during thoracic surgery
levels of greater splanchnic n.
T5-9
levels of lesser splanchnic n
T10-11
level of least splanchnic n.
T12
2 types of branches from sympathetic chain ganglia
1- postganglionic sympathetic to thoracic viscera
2- preganglionic sympathetic innervate abdomen
The greater splanchnic n. synapses in the
celiac ganglion
The lesser splanchnic n. synapses in the
superior mesenteric ganglion
THe least splanchnic n. synapses in the
aorticorenal ganglia
the sympathetic of the thoracic originate at
T1-5
The parasympathetic of the thoracic originate from
CNX
