Aorta Flashcards
The largest blood vessel in the body …
Aorta
Branches of aortic arch
- Rt. Innominate (splits into Rt. subclavian artery and Rt. Common carotid artery)
- Lt. Common carotid artery
- Lt. subclavian artery
aorta is…
retroperitoneal
Aorta originates from..
Left ventricle
Descending aorta is also called..
Thoracic aorta
Aorta bifurcates into..
Rt. and Lt. iliac arteries
Normal size of aorta..
2 to 3 cm
Aorta exceeding 3cm indicates..
AAA
(abdominal aortic aneurysm)
3 layers of a vessel
Tunica intima- inner layer
Tunica media- middle layer
Tunica adventitia (externa)-outer layer
Sonographic appearance of aorta..
Anechoic
Pulsatile walls
1st branch of the abd ao
Inferior phrenic artery
Most inferior branch of abd ao..
Median sacral artery
Branches anteriorly 2 cm from the diaphragm
Celiac axis/celiac trunk/celiac artery
Celiac artery trifurcates into..
LGA (Left gastric artery)
SA (Splenic artery)
CHA (Common hepatic artery)
Left gastric artery courses ____ and _____
(direction)
Superiorly and left
eventually joins RGA (right gastric artery)
Splenic artery courses _____ and ____
Horizontally and left
Splenic artery supplies the…
Spleen
Pancreas
Lt side of greater curve of stomach
LGA supplies to..
lesser curvature of stomach
What vessels make up the portal triad..
MPV (Main portal vein)
CHA (Common hepatic artery)
CBD (Common bile duct)
Common hepatic artery lies ______ and ______ of the main portal vein
Anterior and left (medial)
Common bile duct lies _____ and ______ of main portal vein
Anterior and right (lateral)
Where do MPV, CHA, and CBD enter and exit the liver ?
At hilum called
Porta Hepatis
In transverse plane portal triad could resemble..
Mickey Mouse sign
Celiac artery and its branches resemble..
Shape of seagull
(seen in transverse)
Branch inferior by 1 cm to celiac artery..
SMA (superior mesenteric artery)
SMA travels ____ to aorta (direction)
Inferiorly parallel
SMA divides into several arteries to supply which organs?
Small intestine
Ascending colon
Trv. colon
Pancreatic head
Duodenal area
Which vessels branch off laterally with aorta?
RRA (Right Renal Artery)
LRA (Left Renal Artery)
The _____ renal artery is longer than the _____ renal artery
Right
Left
Which artery is seen posterior to IVC
RRA
LRA travels ____to Right Renal Hilum and _____ to IVC
Posterior
Posterior
