Aortic Ectasia - ️️lack of tapering of the aorta as it travels distally, size remains
constant from proximal to distal portions
3 layers of an artery - ️️1. tunica intima
2. tunica media
3. tunic adventitia/externa
Waveforms associated with coarctation of the aorta? (Distally and in ab...
RVT (URR)
Aortic Ectasia - ✔️✔️lack of tapering of the aorta as it travels distally, size remains
constant from proximal to distal portions
3 layers of an artery - ✔️✔️1. tunica intima
2. tunica media
3. tunic adventitia/externa
Waveforms associated with coarctation of the aorta? (Distally and in abdominal aorta) -
✔️✔️Decreased flow distal to the obstruction, monophasic flow with continuous flow in
diastole in the abdominal aorta
Bovine Arch - ✔️✔️2 branch arch formation: the innominate and left CCA ae combined
and the left subclavian is the second branch of the arch
coarctation of the aorta - ✔️✔️congenital narrowing of the aorta
Where does coarctation of the aorta normally occur? - ✔️✔️distal to the origin of the
left subclavian
Takayasu arteritis - ✔️✔️presents as hypertrophic area(s) of inflamed of tissue usually
found in the aorta and its branches
Tunica intima - ✔️✔️inner layer endothelial cells
Tunica media - ✔️✔️middle layer, muscle layer, thicker and more organized layer in
arteries
How does the EIA travel - ✔️✔️travels laterally to pass through the inguinal ligament to
become the common femoral artery
Normal measurements for PROX, MID and DIST aorta - ✔️✔️prox 2.0-2.6cm
mid 1.6-2.4cm
dist 1.1-2.0cm
what is normal measurement of the iliacs - ✔️✔️.6-1.4 cm
Average velocity of the aorta - ✔️✔️70-100 cm/s
Aorta waveform characteristics - ✔️✔️-high resistance
-biphasic above the renal arteries due to numerous low resistance branches
-resistance in the aorta increases as flow moves distally
-triphasic below renal arteries
What most commonly causes a AAA - ✔️✔️degenerative disease, caused by
breakdown of the media and adventitia layer of the wall
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