Portal Venous System (EASY Scheme) | Anatomy скачать в хорошем качестве

Portal Venous System (EASY Scheme) | Anatomy

Content: 0:00 Introduction 1:25 Superior Mesenteric Vein Tributaries 02:30 Inferior Mesenteric Vein Tributaries 04:05 Splenic Vein Tributaries 05:15 Portal Vein Tributaries 07:00 Porto-Caval Anastomoses ------------------------------- 🫀 Support the channels growth:    / @taimtalksmed   📷 Follow my IG:   / taimtalksmed   💝 Donation link: https://www.buymeacoffee.com/taimtalk... ------------------------------- Portal Venous System Drain the blood from the unpaired visceral organs (large intestine, small intestine, pancreas, stomach, spleen, gall bladder) Portal Vein (vena portae hepatis) formed by: Superior Mesenteric Vein (vena mesenterica superior) Splenic Vein (vena splenica) Inferior Mesenteric Vein (vena mesenterica inferior) Superior Mesenteric Vein: Jejunal and ileal veins (venae jejunales et ileales) Right Colic Vein (vena colica dextra) Ileocolic vein (vena ileocolica) Appendicular vein (vena appendicularis) Midle colic vein (vena colica media) Right gastro-omental vein (vena gastroomentalis dextra) Inferior Mesenteric Vein: Opens into either the Splenic Vein, Superior mesenteric or the portal vein Superior Rectal Vein (vena rectalis superior) Sigmoid vein (vena sigmoideae) Left Colic Vein (vena colica sinistra) Splenic Vein Starts from the Splenic Hilum Left Gastro-omental vein (vena gastroomentalis sinstra) Short gastric Veins (venae gastricae breves) Pancreatic Veins (venae pancreaticae) Portal Vein Left Gastric Vein (vena gastrica sinistra) Oesophageal Veins (venae oesophageae) Right gastric Vein (vena gastrica sinistra) Prepyloric Vein (vena prepylorica) Pancreaticoduodenal Veins (venae pancreaticoduodenales) Cystic Vein (vena cystica) Paraumbillical veins (venae paraumbilicales) Porto-Caval Anastomoses System that connects the portal system with the caval system Causes of portal hypertension: ○ Hepatic Causes (alcoholic liver damage, nonalcoholic fatty liver disease, Hepatitis C infection, other metabolic causes) lead to liver cirrhosis ○ Pre-haptic causes (Portal vein thrombosis or tumor) ○ Post-hepatic causes (Right-sided heart failure) Anastomoses between the oesophageal veins ○ Through Azygos and Hemiazygos veins which empty into superior vena cava ○ Increased pressure in the portal system leads to Esophageal Varices Anastomoses in the rectum ○ Through superior rectal vein ○ Middle rectal vein, which drains into the internal iliac ○ Inferior rectal vein, which drains into the internal pudendal vein ○ An increase in portal pressure may lead to internal hemorrhoids Anastomoses between the paraumbilical veins and the subcutaneous veins around the umbilicus ○ Lead to caput medusae (name originate from medusa) ○ Anastomoses happen between the thoraco-epigastric veins, superficial epigastric veins, and the paraumbilical veins Increased portal pressure also leads to ascites (water in the peritoneal space)