Blood Supply to the Cavities 1.2.18 Flashcards
What major blood vessel gives rise to the posterior intercostal arteries?
Thoracic Aorta
What major blood vessel gives rise to the anterior intercostal arteries?
Internal Thoracic Artery
What major blood vessel gives rise to the internal thoracic artery?
Subclavian Artery
Where does the azygos vein drain into?
The superior vena cava
Where do the anterior intercostal veins drain in to?
‐ The internal thoracic vein
Where do the posterior intercostal veins drain in to?
The azygos system
There are 3 pairs of arteries which emerge from the lateral sides of the aorta to supply
abdominal viscera:
‐ Suprarenal (these may be very hard to see)
‐ Renal
‐ Gonadal
Which vein does the left gonadal vein drain blood into?
Left Renal Vein
Which vein does the right gonadal vein drain blood into?
‐ Inferior Vena Cava
At what vertebral level is the aortic hiatus?
T12
At what vertebral level does the abdominal aorta bifurcate into the right and left common iliac
arteries?
‐ L4
What region of the gut tube does the superior mesenteric artery supply?
Midgut (distal duodenum, jejunum, ileum, ceacum, ascending colon, ½ transverse
colon)
What region of the gut tube does the inferior mesenteric artery supply?
Hindgut (1/2 transverse colon, decending colon, sigmoid colon, superior portion of
rectum).
At what vertebral level do these branches arise? S
SMA: L1; IMA: L3
What organs drain via the portal system?
Gut tube plus gall bladder, pancreas and spleen.
