Anat Ta's Sup Colic Vis Artery Unpaired GI Org

Superior (anterior and posterior) pancreaticoduodenal arteries originate off of the gastroduodenal artery, a sub-branch of the celiac trunk. Inferior (anterior and posterior) pancreaticoduodenal arteries originate off of the superior mesenteric artery. These four branches will anastomose with each other to "connect" the celiac trunk to the superior mesenteric artery. (B) Ileocolic and right colic arteries are both branches of the superior mesenteric artery. (C) Left and right gastro-omental arteries are both sub-branches of the celiac trunk. (D) The right colic artery and marginal artery of Drummond are both involved in the anastomoses between the superior mesenteric artery and the inferior mesenteric artery.

The cystic artery supplies arterial blood to the gall bladder and should be occluded during the surgery to reduce blood loss during the procedure.

The ileum is classically characterized by the features outlined in answer choice D.

The short gastric arteries branch distally off the splenic artery. The short gastrics supply the fundus of the stomach. If you clamp the splenic artery proximal to the short gastrics, you obstruct blood flow to the fundus of the stomach. ‬‬‬‬

This is the inferior mesenteric artery, which anastamoses with the SMA by the marginal artery of Drummond. Options a, b, c, and e all refer to the superior mesenteric artery

The Inferior mesenteric vein joins with the Splenic vein. Then the Splenic vein meets with the Superior mesenteric vein behind the neck of the pancreas to continue on as the portal vein.

The Middle Colic artery off the SMA and the Left Colic artery off the IMA anastomose to form the Marginal Artery of Drummond.

The Ileocecal valve is found at the junction of the Cecum and the Ileum. The mesoappendix is the mesentery unique to the appendix structures.

The diaphragm mostly receives blood supply from the musculophrenic and pericardioacophrenic on the superior surface and inferior phrenic on the inferior surface. For the adrenal gland, it receives blood supply from the inferior phrenic via the superior suprarenal, aorta via the middle suprarenal and renal via the inferior suprarenal. Therefore the answer is the inferior phrenic artery since it is shared by both the diaphragm and adrenal gland

Remember a common problem with Splenectomy is ligation of the splenic artery occurs to far proximally which causes the Short Gastric artery to lose its blood supply. The Short Gastric artery supplies the fundus of the stomach.

The artery supplying the appendix is called the appendicular artery. It is a branch off the ileocolic artery, which is a branch off the superior mesenteric artery.

The tissue being constricted by the surgeon contains hepatic artery, portal vein and common bile duct. The liver's main blood supply (2/3) is by the portal vein and the rest from the hepatic artery (both of which are being constricted in this case). (A) Bile flows from liver and gallbladder to intestine via the common bile duct. (B) The major blood supply of the duodenum is the gastroduodenal artery, which is not located in the hepatoduodenal ligament. (C) The portal vein is part of the portal venous system and there is no caval venous drainage in the hepatoduodenal ligament.

The iliocecal artery supplies the appendix via the appendicular artery. The middle colic and right colic arteries anastamose for the blood supply between midgut and hindgut as the marginal artery of Drummond. The middle colic artery mainly supplies the transverse colon.

The ligament of Treitz suspends the duodenum-jejunum junction from the right crus of the diaphragm. It is also a landmark for the transition to the lower gastrointestinal tract, which is useful, for example, when describing bleeds. The remant of the umbilical vein is the round ligament of the liver (aka ligamentum teres). A remnant of the vitelline duct would be a meckel's diverticulum (remember: rule of 2's)

The lesser curvature is supply by the left gastric and right gastric arteries. If the left side is found to have less blood supply, the left gastric artery is most likely involved. The left and right gastro-omental arteries supply the greater curvature of the stomach. The short gastric artery supplies the fundus of the stomach

Rugae is only found in the stomach.

A lower GI bleed would present with bright red blood in the stool. The ligament of Treitz suspends the fourth part of the duodenum to the stomach.

the liver and falciform ligament are derivatives of the ventral mesentary, which comes from the septum transversium. The others are all developed from the endoderm of the foregut.

The duodenal papilla refers to the proximal 2cm covered in peritoneum (intraperitoneal). The gastroduodenal artery's position to the proximal duodenum puts it at highest risk of damage during an ulcer. See slide 6 of Dr. Barremkala's lecture. Recommendation: spend some time to learn the relationships of arteries to major GI structures (especially in relation to the parts of the stomach for ulcers and pancreas for tumors).

The inferior mesenteric artery arises from the anterior surface of the aorta at the level of the third lumbar vertebra. The third part of the duodenum crosses the midline at the level of the L3 vertebra and passes anterior to the aorta at the origin of the inferior mesenteric artery. The first part of the duodenum lies horizontally to the right of the midline at the L1 vertebra. The second part of the duodenum lies vertically to the right of the midline and extends from the level of the L1 to L3 vertebra. The head of the pancreas lies to the right of the midline and extends from the level of the L1 to L3 vertebra. The neck of the pancreas lies in the midline at the level of the L1 vertebra. It lies on the anterior surface of the descending aorta at the origin of the superior mesenteric artery.

To answer the question correctly, first determine what the likely cause of the patient’s chief complaint is: if you are thinking being a fashion afficionado, you are partially correct. Calvin Klein syndrome (compression of the lateral femoral cutaneous nerve at the ASIS) is the likely diagnosis here. The next step would be to think about where the nerve travels. Since the cause of the parasthesia is from tight jeans, the ASIS involvement makes sense. The last thing to realize is the lateral femoral cutaneous nerve emerges on the lateral border of the psoas muscle (it is important to differentiate where the different nerves of the posterior abdominal wall are found in respect to different muscles).
The incorrect answer choices describe: (a) the ilioinguinal [L1] as well as the femoral and genital portions of the genitofemoral nerve [L1-L2] are associated with the creamasteric reflex, (b) L1-L2 is associated with the genitofemoral nerve and the lateral femoral cutaneous nerve can be found emerging from the lateral border of the psoas m. (c) this distractor was only included to remind you to think about herniations and also consider the important relationships and orientations (as far as lateral vs. medial) that can also complicate questions of that nature.

The patient's findings are highly suggestive of portal hypertension. A past medical history of alcoholism as well as an enlarged liver mass further support our differential diagnosis. Another name for the "Warren Shunt" is the splenorenal shunt. This is one (1) of the extrahepatic shunts specifically involving the splenic vein and the left renal vein. The remaining two (2) extrahepatic shunts include the side-to-side portacaval shunt (between the portal vein and IVC) and the mesocaval shunt (between the IVC and the superior mesenteric vein). The transjugular intrahepatic portosystemic shunt (TIPS) is an intraheptaic shunt that also exists between the hepatic vein and a branch of the portal vein.

The patient's symptoms are suggestive of a dilated left pampiniform plexus, which drains into the left renal vein. The left renal vein may be compressed between the SMA and abdominal aorta in a condition called the Nutcracker syndrome. Thus, an abdominal aortic aneurysm is the most likely of these choices to cause this patient's presenting complaints.

the common bile duct lies anterior and lateral to the hepatic artery, while the portal vein lies posteriorly to both common bile duct and hepatic artery.