Abdomen stuff I forgot Flashcards
Segmentally, what divides the liver into right and left livers?
-The division of the portal triad into right and left branches
Describe the blood supply for each segment
-Each segment has their own blood supply and biliary drainage
Describe the hepatic veins segmentation
- Hepatic veins are intersegmental
- They drain blood from portions of multiple segments adjacent to them
What is the main difference between anatomical divison and hepatic segmentation
- Left medial division lies on the right side of the liver
- But it is included in the right side for hepatic segmentation
What is the inferior part of the left medial division
-Quadrate lobe
RECAP- Each segment has…
-and what is shared
- Arterial blood supply
- Biliary drainage
-Venous drainage is shared
What is special about the caudrate lobe
The caudrate lobe receives 2 different blood supplies and biliary drainage
This is the second capillary bed that is between the left ventricle and the right atruium
Portal system
Portal venous blood delivers oxygen to the…
Hepatocytes
Where does the portal venous blood drain from?
Drains from the intestines –> liver
What absorbs lipids
lymphatic vessels
______ branch off of the celiac truck
Hepatic arteries
Where do the hepatic arteries bring blood
-Intrahepatic bile ducts
Where do portal blood and hepatic artery blood dump into?
Sinusoids (no basement membrane)
Sinusoids drain into the…
Lobule
The lobule goes to the…
Central vein
The central vein goes to the…
Hepatic vein
What are the direct branches that make the portal vein
- Splenic vein
- Superior mesenteric vein
What are other tributaries of the hepatic portal vein
- R & L gastric
- Pancreaticoduodenal
- Cystic
In what structure does the portal triad travel
-Hepatoduodenal ligament
This is an area on the visceral surface of the liver where the vessels and ducts emerge and enter
Porta hepatitis
What type of blood does the left liver receive
- Splenic
- Gastric
Where does the right liver receive blood from
-Small intestine
What is the function of the gallbladder
-Concentrate, store, and deliver bile
Where does the body of the gallbladder lie in relation to the duodenum
Anterior to the duodenum
Where does the neck and the cystic duct lie in relation to the duodenum
-Superior to duodenum
Describe the gallbladders relationship with peritoneum
Gallbladder is completely surrounded by peritoneum and this binds it to the liver
What duct connects the gallbladder to the common hepatic duct
-Cystic duct
What is formed when the cystic duct and the common hepatic duct meet?
Bile duct
What 2 things form the common hepatic duct
Right and left hepatic duct
Where does the bile duct empty into?
-The second part of the duodenum at the major duodenal papulla
What are the boundaries of the cystohepatic triangle
- Common hepatic duct
- Cystic duct
- LIver
What is in the cystohepatic triangle
Cystic artery
What does the cystic artery supply
- Cystic duct
- Gallbladder
What are the boundaries of the Triangle of Calot
- -Common hepatic duct
- Cystic duct
- Cystic artery
(important in a cholecystectomy)
Where does the pancreas lie?
- Retroperitoneal
- Behind the stomach
- On the abdominal aorta
- L2 level
Where does the head of the pancreas lie
- In the duodenum
- On the IVC, right renal a &v, and left renal vein
Where does the neck of the pancreas lie
-Over the SMV and Splenic vein (where the portal vein is formed)
The tail lies..
- Anterior to the left kidney
- Close to the splenic hilum
Where does the pancreas receive blood from
- Branches of splenic
- Superior and inferior pancreaticoduodenal artery
Where do pancreatic veins drain
-Splenic vein
What are characteristics of the spleen
- Intraperitoneal
- Hilum
- Thin fibrous capsule
- Lies on the left colic flexure
What organs are on the surfaces of the spleen
Anterior=stomach
Posterior= left hemidiaphragm
Inferior=left colic flexure
Medially= left kidney
What are the 2 ligaments of the spllen
- Gastrosplenic (greater omentum)
- Splenorenal ligament
Blood supply for the spleen
-Splenic artery and vein
Where do the kidneys receive blood from
- Inferior phrenic arteries
- Renal arteries
- Abdominal aorta
What are the layers of the kidney
- Kidney
- Capsule
- Perirenal fat (goes into sinuses)
- Fascia
- Pararenal fat
What structures contact the kidney
- Diaphragm
- QL
- Liver
- Duodenum
- Asc/RCF
- Stomach
- Spleen
- Pancreas
- Jejunum
- Descending colon
What do the renal sinuses contain
Renal pelvis
The ureters run _____ to the gonadal vessels
posteriorly
What are the 3 characteristic narrowings of the ureters
- Junction of ureter with renal pelvis
- Where ureters cross the brim of the pelvic inlet
- Where ureters enter the bladder
