Term
| What are the ligaments of the liver? |
|
Definition
1) falciform ligament
- anterior body wall attachment
- divides liver into R & L anatomical lobes
2) ligamentum teres (round ligament)
- remnant of umbilical vein
3) coronary ligament
- visceral serous membrane (visceral peritoneum)
- falciform becomes ant. & post. leaflet of coronary ligament
4) R & L triangular ligaments
5) Hepatogastric
6) Hepatoduodenal
7) Ligamentum venosum |
|
|
Term
| What is the posterior leaflet of the coronary ligament continuous with? |
|
Definition
|
|
Term
| Where is the bare area of the liver? |
|
Definition
| 1) Contained between the ant. & post. leaflets of coronary ligament |
|
|
Term
| What forms the hilus of the liver? |
|
Definition
|
|
Term
| What is the ligamentum venosum? |
|
Definition
| 1) embryonic remnant of the ductus venosus |
|
|
Term
| What is the quadrate lobe bounded by? |
|
Definition
1) round ligament and it's fissure
2) gall bladder
3) porta hepatis |
|
|
Term
| What is the caudate lobe bounded by? |
|
Definition
1) inferior vena cava
2) porta hepatis
3) fissure of ligamentum venosum
4) can be palpated through omental foramen |
|
|
Term
| What is the area behind the caudate lobe called? |
|
Definition
| 1) Hepatic or superior recess of omental bursa |
|
|
Term
| How do you define the functional lobes of the liver? |
|
Definition
1) By the branching pattern of the incoming arteries & the portal vein & the outgoing biliary duct system
2) functional division is roughly right of the falciform ligament
- line drawn through gall bladder and IVC |
|
|
Term
| How is the liver innervated? |
|
Definition
1) Post-ganglionic sympathetics & afferent fibers via hepatic plexus
2) Pre-ganglionic fibers from greater & lesser splanchnic
3) Parasympathetic from ant. & post. vagal trunks |
|
|
Term
| What are the four Porta-caval anastomoses? |
|
Definition
1) Esophageal
2) Paraumbilical
3) Rectal
4) Retroperitoneal |
|
|
Term
| What is the esophageal anastamoses? |
|
Definition
1) Blood can enter the esophageal vein --> left gastric vein --> portal vein
2) Blood can enter veins of thoracic esophagus --> azygos --> IVC |
|
|
Term
| What is the paraumbilical anastamoses? |
|
Definition
1) Paraumbilical veins --> portal vein
2) Umbilical venous plexus --> SVC |
|
|
Term
| What is the rectal anastamoses? |
|
Definition
1) Rectal anastamoses --> Superior rectal vein --> Inf. Mes. Vein --> Portal vein
2) rectal anastamoses --> middle/inferior rectal veins --> IVC |
|
|
Term
| What is the retroperitoneal anastamoses? |
|
Definition
| 1) All retroperitoneal structure can drain into portal or caval systems |
|
|
Term
| What are the symptoms of portal hypertension? |
|
Definition
1) sequelae of portal hypertension
2) areas of venous anastamoses swell & dilate
3) esophageal varices
4) hemorrhoids
5) splenomegaly
6) hepatomegaly
7) caput medussa
- swelling of paraumbilical anastamoses resulting in halo of snake-like varicosities radiating away from umbilicus |
|
|
