Flashcards in Anatomy IV Nerves, Vessels Deck (62):
Name the 3 arteries that supply the following:
Superior mesenteric artery
inferior mesenteric artery
3 vascular planes that the abdominal aorta supply they are?
Lateral: paired: kidneys, gonads, adrenals
Posterior: diaphragm, post abdo wall
Celiac trunk supplies from what till what?
abdo esophagus --> main duodenal papilla
What organs do the Celiac trunk supply? 5 things:
What organs do the superior mesenteric trunk supply?
after duodenal papilla, jejunum, ileum, appendix, cecum, ascending and most of transverse colon
superior mesenteric trunk supplies from what till what?
after duodenal papilla to just short of splenic flexure
What organs do the inferior mesenteric trunk supply?
top of anal canal
Celiac trunk breaks into how many branches and at what level?
immediately into 3 branches
What are the 3 branches that the celiac trunk breaks into?
Common hepatic (Right)
Splenic is straight or loopy? runs along?
runs along superior border of pancreas
What does the splenic artery supply? 4 things
some to top of greater curvature
anastamoses and gives off left gastric epiploic artery
What does the left gastric artery supply?
cardio esophageal junction
supplies along lesser curvature of stomach
Which direction does the hepatic artery turn right after celiac trunk? what does it divide into?
proper hepatic artery
proper hepatic artery runs how? supplies what? divides?
runs on the free edge of lesser omentum as part of portal triad
divides into left and right hepatic artery
What artery supplies the gall bladder?
the cystic artery coming off the right hepatic artery can be variable
Gastroduodenal artery comes from what?
common hepatic artery
Gastroduodenal artery runs behind or in front of duodunum?
proximal duodenum is common site for what?
if it bad enough, it can erode into the Gastroduodenal artery then you just vomit blood
Gastroduodenal artery supplies what?
head of pancreas
last part of greater curvatures
How does Gastroduodenal artery supply the proximal duodenum
head of pancreas?
last part of greater curvatures?
superior pancreo-duodenal artery
right superior right epiploic artery
Where and what level does the superior mesenteric artery arise?
1cm below celiac trunk at L1
superior mesenteric artery travels along what?
root of mesentery
superior mesenteric artery: every branch to left is to what? right?
left: jejunum and ileum
superior mesenteric artery before is supplies the jejunum and ilum, has to supply what? via what?
last part of duodenum via inferior pancreaduodenal artery
How do you know you're looking at jejunum?
long vasa recta
How do you know you're looking at ileum?
short vasa recta
Are there vasa recta, arcades in the marginal artery?
colic arteries contribute to one channel called the?
How does marginal artery run?
parallel to colon
from the superior mesenteric artery, there are 3 branches that go right to support the colon, they are?
right colic: ascending colon
middle colic: transverse colon
inferior mesenteric artery comes off aortic artery near what part of duodenum? near what vertebra?
horizontal part of duodenum
inferior mesenteric artery heads which direction?
left and downwards
inferior mesenteric artery gives off 2 colic branches they are?
left colic: descending colon
inferior mesenteric artery changes name into what as is passes into pelvis?
superior rectal artery
What organs drain through portal system? 4 things
tubular gastrointestinal tract
NOT THE LIVER
tubular gastrointestinal tract
unite to form what?
hepatic portal vein
hepatic portal vein forms where? what vertebral level?
behind neck of pancreas at L2
hepatic portal vein made up of
Inferior mesenteric vein meets the splenic vein which meeting superior mesenteric vein
where does hepatic portal vein travel after all the smaller veins join up?
behind the duodenum, ascends free edge of lesser omentum as part of triad, behind the proper hepatic artery
what happens to blood after hepatic portal vein enters the liver?
into sinusoids to process products of digestion
blood in sinusoids to hepatic veins then where?
To the IVC
What drains into the systemic caval system?
sides and back of abdo aorta: adrenals, kidneys, gonads, abdo walls and diaphragm
sides and back of abdo aorta: adrenals, kidneys, gonads, abdo walls and diaphragm drains into what?
IVC via Caval system
valves in the portal system? high or low pressure?
Valveless. low pressure.
What happens in liver fibrosis/cirrhosis?
How does the body compensate with portal hypertension?
it uses anastamoses between portal and systemic and those enlarge
Name the portal/systemic veins anastamoses. what happens with portal hypertension?
1. lower esophagus near cardiac orifice (left gastric veins anastamos with azygous vein)
2. superior rectal veins (haemorrhoids)
3. anterior abdo wall (dilated veins near umbilicus)
4. retroperitoneal viscus against post abdo
5. bare area of liver
What happens to lower esophagus near cardiac orifice veins in portal hypertension?
They dilated and risk of tearing them if swallow something big/sharp, they vomit (BUCKET OF BLOOD)
abdo viscera innervated by autonomic or somatic nervous system?
Preganglionic sympathetic fibres derived from what to innervated abdo?
Sympathetic ganglion clusteres around what arteries?
unpaired branches of aorta
Where is parasympathetic innervation?
foregut/midgut = vagus
pelvic splanchnics/hindgut = S2-4
Post ganglionic fibres in abdo pass with blood vessels: what levels for
hind gut: T12-L2
afferent fibres carrying pain from unpaired abdo viscera prox to mid-sigmoid refers where?
midline of abdowall T6-L2 dermatomes
afferent fibres carryin pain from mid sigmoid down refers to?
perianal region, S2-4
preaortic lymph nodes drain ant. abdo aorta, organized around unpaired branches, which organs? 5 things
paraaortic lymph nodes receive from?
post abdo wall
intestinal lymph trunks created from which lymph nodes?
preaortic lymph nodes
right and left lumbar lymph trunks created from which nodes?
intestinal, right and left lumbar lymph trunks coalesce into what?
cisterna chyli just under the diaphragm
placement of cisterna chyli ?
aortic hiatus between crura