thoracic viscera and mediastinum Flashcards
what is the brachipcephalic vein formed by?
clinical correlation?
union of internal jugular and subclavian veins
-left is twice as long as right
what does the ligamentum arteriosum connect?
left pulm artery to inferior arch of aorta
what types of cells does the vagus nerve contain?
-where will they synapse?
pre ganglionic visceral motor fibers
-synapse in microscopic ganglia in organs
where will the left and right recurrent laryngeal nerve continue to after larynx?
left: anterior esophagus and anterior stomach
right: posterior esophagus and posterior stomach
where does the thoracic duct exit the disphragm?
where does it drain to?
- aortic hiatus at T12
- junction of left jugular and subclavian vein
what does the thoracic aorta branch into?
- posterior intercostals
- bronchial arteries
what is the azygous vein formed by?
-what level and where does it drain into?
- right ascending lumbar vein
- subcostal vein
- T4
- superior vena cava
what is the hemiazygous vein formed by?
left ascending lumbar vein
subcostal veins
what level does the hemiazygous vein enter the azygous vein?
-what structures does it drain?
- T9
- lower 4 posterior intercostal veins on left side
what level does the accessory hemiazygous vein enter the azygous vein?
-what structures does it drain?
- T8
- 5-8 posterior intercostal veins on left side
what kind of nerve fibers make of the spanchnic nerves?
preganglionic sympathetic fibers
what level makes up the greater planchnic nerve?
where does it synapse?
- T5-T9
- in ganglia of celiac plaxus
where does the post ganglionic fibers of greater splanchnic nerve go to?
upper portion of GI tract
what level makes up the lesser spanchnic nerve?
where does it synapse?
- T10-T11
- synapse in superior mesenteric ganglia and aortico-renal ganglia
what level makes up the least spanchnic nerve?
where does it synapse?
- T12
- synapse in aortico-renal ganglia and renal plexi
