Portal venous system Flashcards
What are the two inter linked venouse systems within the trunk
Portal venous system
Caval venous system
What does the venous system drain
Gastrointestinal tract
Spleen
Pancreas
Gallbladder
What does the caval venous system drain
Kidney
Super renal gland
What two veins joint to form the portal vein
splenic vein
Superior mesenteric vein
What are the tributaries of the portal vein
Splenic vein
Superior mesenteric vein
Left gastric vein
Paraumbilical veins
What is the most common site for metastasis of colon cancer?
The liver
What is the path blood takes in the portal system
Organs —>portal vein–>Liver–> Hepatic vein–> inferior vena cava
What is the path blood takes in the caval system
Organs—>superior/inferior vena cava
What is the condition characterized by destruction of hepatic cells and is replaced by fibrous tissue and fat
Cirrhosis of the liver
What does cirrhosis of the lvier cause
Portal hypertension
What can cause cirrhosis of the liver
Alcoholism
Hepatitis
Chronic obstruction of bile duct
Congestive heart failure
What is portal hypertension
Abnormal elevation of pressure within the portal system,
Where does blood back up into during portal hypertension
Backs into caval system, by passes the liver
What will happen to the anastomotic veins of the portal and caval system
Veins become varicose and rupture
What are the sites of portal-caval anastamosis
Distal esophagus (gut) Around umbilicus (caput) Rectum and anal canal (butt)
