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Ultrasound Seminar: Abdominal Vasculature Anatomy and Physiology
Terms in this set (76)
What is the largest artery in the body?
Where does the aorta originate at?
left ventricle of the heart
What is the subdivison of the aorta within the chest referred to as?
When is the aorta referred to as the abdominal aorta?
when it passes through the aortic hiatus of the diaphragm
How is the aorta located to the spine?
Which side of the midline is the aorta positioned on?
How many layers does the wall of the aorta consists of?
What is the innermost layer of the aorta?
What is the middle or muscular layer of the aorta?
What is the outermost layer of the aorta?
What may the tunica adventitia also be referred to as?
Most abdominal arteries are considered to have ______________ flow
What may the celiac trunk be called?
celiac artery or celiac axis
What is the first main visceral branch of the abdominal aorta?
What are the branches of the celiac trunk?
splenic, common hepatic, and left gastric artery
What make up the seagull appearance?
celiac trunk, common hepatic, and splenic artery
What may the splenic artery be confused with?
main pancreatic duct
What kind of flow does the splenic artery have?
What does the common hepatic artery branch into?
gastroduodenal artery and proper hepatic artery
What artery supplies the gallbladder?
What is the cystic artery a branch of?
right hepatic artery
What is the second main branch of the aorta?
What supplies part of the small intestine, some of the colon, and the pancreas?
How can the SMA be identified sonographically?
echogenic fat layer
What is the SMA posterior to?
splenic vein and pancreas
What is the SMA left lateral to?
What kind of flow does the common iliac artery have?
When will the SMA exhibit high resistance flow?
How long after postprandial will the SMA yield a low resistance waveform?
30 to 90 minutes
What is the third main visceral branches of the abdominal aorta?
What originates from the right anterolateral aspect of the aorta?
right renal artery
The right renal artery travels __________ to the IVC
What originates from the left anterolateral aspect of the aorta?
left renal artery
What does the left renal artery travel posterior to as it goes to the left renal hilum?
left renal vein
What side of the body is the aorta on?
Which renal artery is longer?
What may be identified in the sagiittal plane as an anechoic circle posterior to the IVC?
right renal artery
What is the 4th branch of the aorta?
Are the gonadal arteries seen on ultrasound?
What supplies blood to the transverse colon, descending colon, and rectum?
Where does the aorta bifurcate?
The aorta will gradually be located more ____________ in the abdomen as it travels away from the disphragm
What is the upper normal limit of the abdominal aorta just below the diaphragm?
What is the normal limit of the aorta in the midabdomen?
2 cm or less
What should the distal aorta not exceed?
What do the common iliac arteries typically measure between?
8 mm to 10 mm
What is the proximal aorta superior to the abdominal visceral branches waveform?
What is the distal abdominal aorta waveform?
When should the aorta show a tripahsic, high resistance flow pattern with reversal of flow in early diastole?
What is the largest vein of the body?
How is the IVC created?
by the union of the common iliac vein
Does the IVC or the AORTA have a smaller amount of smooth muscle within its tunica media?
The IVC travels ____________ through the abdomen
The IVC is ________ to the spine
The IVC is ___________ ______________ to the aorta
What does the IVC travel through?
vena caval foramen of the diaphragm
Where does the IVC terminate
right atrium of the heart
How many sections is the IVC separated into?
What are the 4 sections of the IVC?
hepatic, prerenal, renal, and postrenal
What is the primary function of the IVC?
bring deoxygenated blood from the lower extremities, pelvis, and abdominal organs back to the heart
What is the most superior portion of the IVC?
How does the hepatic veins course?
posterior to the caudate and through the bare area
When may the hepatic veins be narrowed?
When is there enlargement of the hepatic veins and IVC?
right-sided heart failure
What is just below the hepatic veins on the IVC?
Which renal vein is longer?
What is the left renal vein posterior to?
What is the left renal vein anterior to?
left renal artery and abdominal aorta
What is it termed when the left renal vein travels posterior to the aorta?
retroaortic left renal vein
What are referred to as testicular veins in the male and ovarian veins in the female?
How does the right gonadal vein connect to the IVC?
What does the left gonadal vein drain into?
left renal vein
Which gonadal vein is longer?
The right and left common iliac veins combine to form the IVC near the umbilicus, typically just _________ of the midline
What should the diameter of the IVC never exceed?
What can alter the size of the size?
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