Serrat- Abdominal Vasculature And Lymphatics Flashcards
Blood supply to the GI tract is from ?
Abdominal aorta
What are the three unpaired branches of the aorta that supply the GI tract?
Celiac trunk
Superior mesenteric artery
Inferior mesenteric artery
What artery supplies the embryological foregut?
Celiac trunk
What artery supplies the embryological hindgut?
Inferior mesenteric artery
What artery supplies the embryological midgut?
Superior mesenteric artery
What organs does the celiac trunk supply ?
Esophagus
Stomach
Gallbladder
Pancreas
Duodenum
What organs does the superior mesenteric artery supply?
Duodenum
Jejunum and ileum
Cecum and appendix
Ascending colon
Right (hepatic) colic flexure
Transverse colon
What organs does the inferior mesenteric artery supply?
Transverse colon
Left colic (splenic) flexure
Descending and sigmoid colon
Rectum
Anal canal (upper part)
What are the 3 major branches of the celiac trunk ?
Left gastric, splenic, common hepatic
The superior mesenteric artery passes over the _____ part of the duodenum and travels in the mesentery
3rd
The three main branches of the inferior mesenteric artery are?
Left intestinal (to descending colon)
Sigmoid branches
Superior rectal
The splenic artery gives multiple small unnamed branches to the _____ on its way to the spleen
Pancreas
The short gastric artery is a branch off of the splenic artery and supplies the ______
Fundus of the stomach
The _____ artery branches from the splenic artery very close to the spleen
Left gastroepiploic (supplies greater curvature of the stomach)
The right gastric artery (to lesser curvature) is a branch off of the?
Proper hepatic artery
What are the 5 main branches of the superior mesenteric artery?
- Inferior pancreaticoduodenal
- Intestinal branches (numerous)
- Middle colic
- Right colic
- Ileocolic
What does the inferior pancreaticoduodenal artery supply blood to ?
The inferior pancreas and duodenum
What do the numerous intestinal arteries (off SMA) supply blood to?
Jejunum
Ileum
What does the middle colic artery (off SMA) supply blood to ?
The transverse colon
What does the right colic artery (off of SMA) supply blood to ?
Ascending colon
What does the ileocolic artery (off SMA) supply blood to ?
Cecum
What are the three main branches of the inferior mesenteric artery?
Left colic (to descending colon)
Sigmoid branches (to sigmoid colon)
Superior rectal (to rectum)
What is the anastomoses between the celiac trunk and superior mesenteric artery?
These arteries anastamose around the head of the pancreas thru the superior and inferior pancreaticoduodenal arteries
(Both posterior and anterior)
How do the superior and inferior mesenteric arteries anastamose?
They anastamose thru branches that are near the left colic flexure thru the marginal artery of drummond
What is the marginal artery of drummond
The marginal artery of drummond is a continous anastamoses that runs along the entire margin of the colon on the inner aspect and connects the inferior and superior mesenteric artery.
What are the 2 separate venous drainage systems in the abdomen ?
The portal system
The caval system
The superior mesenteric A passes ________ to the 3rd part of the duodenum
Anterior
What arteries form the marginal artery of drummond? (Anastamoses between midgut and hindgut)
Middle colic artery (superior mesenteric)
Left colic artery (inferior mesenteric)
Blood from ________ goes through the portal system before entering the inferior vena cava
Digestive organs and spleen
The portal vein is formed by the junction of the splenic and superior mesenteric veins ______ to the neck of the pancreas
Posterior
Do veins of the portal system have valves ?
No
Blood from -_______- drains directly into the inferior vena cava
Non-digestive
What veins make the venous anastamosis near the esophagus?
Gastric V (portal system)
Esophageal V. (Caval System)
What veins make the anastamosis near the umbilicus?
Paraumbilical vein (portal system)
Superficial epigastric V. (Caval system)
What veins form the anastamoses near the rectum ?
Superior rectal vein (portal system)
Inferior rectal vein (caval system)
What veins form the anastamoses in the posterior abdomen?
Colic vein (portal system)
Retroperitoneal vein (caval system)
Blood enters the liver via the ?
Portal vein
Blood returns to systemic circulation from the liver via?
Hepatic veins
The superior mesenteric vein is _____ to the superior mesenteric artery
Lateral
The splenic vein is _______ to the splenic artery
Inferior
Blockage of the venous anastamoses that is at the esophagus may cause?
Esophageal varices
Hemorrhage may be fatal
Blockage of the venous anastamoses that is in the umbilical region, may cause?
Caput medusae
Blockage of the venous anastamoses that is in the area of the rectum may cause?
Internal hemorrhoids
The abdominal wall above the umbilicus drain to ?
The anterior and posterior axillary nodes
The abdominal wall below the umbilicus drain to ?
The superficial inguinal nodes
The lymph from the skin of labia majora drains to ?
Superficial inguinal nodes
The blood to the testis comes from the testicular artery which arises from the abdominal aorta. Lymph from the testis drains to the _______ nodes
Para-aortic (lumbar) nodes
Blood to the scrotal skin and fascia, including tunica vaginalis comes from named branches off of the internal and external iliac aa. The lymph from these areas drains to the ?
Superficial inguinal nodes
What are the names of the 3 pre-aortic lymph nodes?
Celiac nodes
Superior mesenteric nodes
Inferior mesenteric nodes
Except for the inferior anal canal, lymph from the gastrointestinal tract does what?
The vessels follow the arteries and drain into the pre-aortic nodes
The pre-aortic nodes are located _______ to the abdominal aorta?
Anterior
The anal canal superior to the pectinate line receives blood from the inferior mesenteric artery. Lymph from this area drains to the ____ node
Inferior mesenteric nodes
The anal canal inferior to the pectinate line receives blood from named branches of the internal iliac artery. Lymph from here drains to the ? Node
Superficial inguinal nodes
The pre-aortic and para-aortic lymph nodes come together at the ?
Cisterna chyli
Lymph from the posterior abdomen drains to the _____ and _______ nodes
Pre-aortic
Para-aortic (lumbar)