vitale 11 Flashcards
the inferior vena cava is generated by the confluence of which veins?
common iliac veins
inferior epigastric vessels travel where?
branches of external iliac arteries/veins travel on the lateral side of the rectus abdominis and anastomose with the superior epigastric vessels
superior epigastric vessels are branches of?
the internal thoracic arteries/veins
the splenic vein drains blood from where?
body and tail of pancreas
portal vein formed by
inferior mesenteric vein merges into splenic vein that then merges into superior mesenteric vein
where do we have the merging of the veins to generate the portal vein
behind the first portion of the duodenum
what is the name of the fold that extends from the lesser curvature of the stomach, the first portion of the duodenum to the hilum of the liver?
-the lesser omentum
-peritoneal fold
in the right portion of the lesser momentum we have?
hepatic artery, common bile duct and hepatic portal vein
the lesser omentum is made by 2 portions
-one on the left originates from the lesser border of the stomach
->gastrohepatic ligament
-one originates from the first portion of the duodenum and is called hepatoduodenal ligament
what is the part of the lesser omentum that contains hepatic portal vein, hepatic artery proper and coledocus (common bile duct)?
hepatoduodenal ligament
the central lobular veins in the hepatic lobules merge into?
supra hepatic veins that merge into the inferior vena cava
hepatocytes are polarized
2 poles
one binary pole
one vascular pole
what is rete mirabilis?
a capillary system in between two vessels of the same nature
venous rete mirabilis between two veins in the portal system
capillaries in between the hepatic portal vein and the supra hepatic vein that drain everything into the inferior vena cava
where does hemocateresis take place?
in the spleen
thanks to phagocytic cells in the big splenic sinuses (they are big cause they want the blood flow to be slow to give time to phagocyte all the old erythrocytes)
what happens to erythrocytes at 120 days?
change the composition of the external membrane and are recognized as senescent by the phagocytic cells in the sinuses of the spleen
why do we need the splenic vein to merge with the superior mesenteric and inferior mesenteric to form the portal vein?
we need to recycle some components of old erythrocytes and in order to do that we need to bring them in the liver (main recycling structure of our body)
portosystemic anastomoses are generated mainly by which venous collaterals?
-abdominal esophageal veins
->vomit blood
-terminal branches of the inferior mesenteric vein that forms the hemorrhoidal plexus on the upper portion of the rectum->hemorrhoids
-superficial veins in the abdomen->caput medusae
internal iliac artery is also called? and vascularizes?
hypogastric
vascularizes pelvic and perineal organs
external iliac arteries vascularize ?
the lower limb
become femoral artery right below the inguinal ligament
before exiting the pelvis gives the inferior epigastric artery
the hypogastric artery exits the pelvis through?
the lesser ischiatic hole
vascularizes the gluteal muscles
the hypogastric artery at the level of the lesser ischiatic foramen branches into?
internal pudendal artery
what vascularizes the internal pudendal artery?
the perineum
that closes the pelvic cavity at the bottom
the anterior triangle of the perineum is?
the urogenital triangle
in female perforated by the vaginal canal
in males by the urethra
