Aorta1 Flashcards
What makes up the proximal aorta
ascending aorta and transverse aortic arch
What are the landmarks for ascending aorta
aortic valve to inominate artery
What is the landmark for the transverse aortic arch
where the brachiocephalic branch arises
What makes up the distal aorta
descending thoracic and abdominal aorta
What are the landmarks for the descending thoracic aorta
distal to the left subclavian artery to the diaphragmatic hiatus
Where is pressure of blood flow highest
thoracic aorta
What can high pressure blood flow cause
dissection, aneurysm, rupture
Define aneurysm
permanent, localized dilation, greater than 50% the normal size at that specific anatomic level
Causes of aneurysms
dissection, aortitis, infection, trauma, degeneration
What is the aneurysm called if it involves the entire aorta
mega-aorta
Name the 2 types of true aneurysms
fusiform, saccular
Describe fusiform aneurysms
MC type, symmetrical
Describe saccular aneurysms
localized out pouchings
Define false aneurysm (pseudoaneurysm)
leaks that cause blood to collect in pouches of scar tissue on the exterior aorta
How is a small aneurysm treated
serially follow, control HTN
