Blood supply of abdominal region

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  • Created by: ftpptf
  • Created on: 17-04-19 17:26
Where does the abdominal artery enter the abdomen?
Through the aortic opening in the diaphragm at the level of T12.
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To which side of the midline does the abdominal aorta just about lie?
Left.
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Where/how does the abdominal aorta end?
Ends by dividing into left and right common iliac arteries at the level of L4.
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What is the name for the point at which the aorta divides?
Aortic bifurcation.
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What are the 3 branches of the aorta that arise in the midline?
Coeliac trunk, superior mesenteric and inferior mesenteric arteries.
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Where does the coeliac trunk arise?
Immediately below the margin of the aortic opening at the level of T12.
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How many branches does the coeliac trunk divide into?
3.
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What are the 3 branches of the coeliac trunk?
Common hepatic, left gastric and splenic arteries.
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What do these branches of the coeliac trunk supply?
Liver, stomach, duodenum, pancreas and spleen.
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Where does the superior mesenteric artery arise?
At the level of L1 (from abdominal aorta).
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What do the branches of the superior mesenteric supply?
Small intestine and much of large intestine.
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Where does the inferior mesenteric arise?
At the level of L3 (from abdominal aorta).
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What do the branches of the inferior mesenteric supply?
Distal part of large intestine.
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What are the largest pair of arteries of those that arise from the aorta in pairs?
Left and right renal arteries.
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What do the left and right renal arteries supply?
Left and right kidneys.
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Which pair of arteries arises from the aorta around L2?
Ovarian (in females) and testicular (in males) arteries. (Gonadal arteries).
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What do the ovarian/testicular arteries run over?
Run downward and laterally over psoas muscle.
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How many pairs of lumbar arteries arise from the back of the aorta?
4
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What do the lower 2 pairs of these lumbar arteries pass behind?
Psoas major.
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What do the lower 2 pairs of these lumbar arteries branch to supply?
Back, spine and abdominal wall.
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Which artery arises from the back of the aorta just above the bifurcation?
Median sacral artery.
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What do the common iliac arteries divide into on each side?
External and internal iliac arteries.
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What does the common iliac artery run close to?
Medial border of psoas major.
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Where do the common iliac arteries divide?
At pelvic brim.
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What is the main artery to the lower extremity?
External iliac artery.
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What does the external iliac run along and medial to what?
Along pelvic brim just medial to psoas major.
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What does the external iliac pass beneath?
Inguinal ligament.
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What does the external iliac become when it passes below the inguinal ligament?
Femoral artery.
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Where does the external iliac give off 2 branches?
Just before passing beneath the inguinal ligament.
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What are these 2 branches?
Deep circumflex iliac (laterally) and inferior epigastric (medially).
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Where does the deep circumflex iliac artery run?
On deep aspect of anterior abdominal wall, parallel to the inguinal ligament.
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What does the deep circumflex iliac supply?
Iliacus muscle and inferior part of anterolateral abdominal wall.
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Where does the inferior epigastric artery run? (what does it enter? and what does it run deep to?)
Superiorly and enters rectus sheath - runs deep to rectus abdominis.
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How do the inferior epigastric vessels (artery and vein) enter the rectus sheath?
By passing in front of arcuate line.
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What does inferior epigastric supply?
Inferior rectus abdominis and medial part of anterolateral abdominal wall.
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What is the superior epigastric artery the continuation of?
Internal thoracic artery.
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What does the superior epigastric artery emerge from behind?
Costal margin.
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What does the superior epigastric artery descend in?
Rectus sheath deep to rectus abdominis.
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What does superior epigastric supply?
Superior rectus abdominis and superior part of anterolateral abdominal wall.
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What are the 2 venous systems that drain the abdominal structures?
Portal venous system and systemic venous system.
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What is the femoral vein called above the inguinal ligament?
External iliac vein.
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What is the external iliac vein joined by? and what does this form?
Joined by internal iliac vein to form common iliac vein.
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Where do the left and right common iliac veins join? and to form what?
Just to right of bifurcation of aorta to form inferior vena cava.
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What does the right common iliac artery pass in front of?
Left common iliac vein.
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Which side of the midline does the inferior vena cava run just about to?
Right.
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Which vertebral bodies does the inferior vena cava lie on?
L4 to T12 (then lies on right crus of diaphragm).
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What does the inferior vena cava enter as it passes through the diaphragm?
Right atrium.
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Where do the 2 large renal veins join the inferior vena cava?
At level of T12.
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What does the left testicular vein drain into?
Left renal vein.
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What does the right testicular vein drain into?
Inferior vena cava.
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Where do the hepatic veins enter the vena cava?
Just below the diaphragm.
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Other cards in this set

Card 2

Front

To which side of the midline does the abdominal aorta just about lie?

Back

Left.

Card 3

Front

Where/how does the abdominal aorta end?

Back

Preview of the front of card 3

Card 4

Front

What is the name for the point at which the aorta divides?

Back

Preview of the front of card 4

Card 5

Front

What are the 3 branches of the aorta that arise in the midline?

Back

Preview of the front of card 5
View more cards

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