Flashcards in The spleen and liver Deck (25)
What structure mirrors the anterior border of the spleen?
What structures mirror the posterior border of the spleen?
What structures are found at the medial border of the spleen?
Tail of pancreas
What structures are in contact with the superior border of the spleen?
What structures mirror the inferior border of the spleen?
Left colic flexure
In which abdominal quadrant is the spleen located?
Upper left (left hypochondrium)
What ribs protect the spleen from trauma?
What are the 3 functions of the spleen?
Blood filter (removing old RBCs)
Immunofiltration (site of B and T lymphocytes)
What are the two ligaments of the spleen? What structures do they connect?
Splenic hilum --> greater curvature of stomach
Splenic hilum --> left kidney
What structures are found at the splenic hilum?
Sympathetic vasomotor fibres
What is the innervation of the spleen?
Splanchic nerve via coeliac plexus
What is the path of lymph drainage from the spleen?
Pancreaticosplenic nodes --> celiac nodes
Outline the path of the splenic artery
Branches from the celiac trunk, across pancreas, splits into 6 central arteries at splenic hilum
Outline the path of the splenic vein
Leaves hilum, superior mesenteric, portal vein
What is the red pulp of the spleen? What percentage of splenic volume is this?
Sinusoid and vascular sinuses filled with blood
Majority of splenic parenchyma (80%)
What is the white pulp of the spleen? What percentage of splenic volume is this?
Aggregations of lymphoid tissue
What are the marginal zones of the spleen?
What is their function?
Do these zones have any other names?
Interface between lymphoid (white) and non-lymphoid (red) pulp
High perfusion at an decreased rate- enhances reactions between lymphocytes and antigens
Perilymphoid tissue/follicular tissue
What are the long term implications of a splenectomy?
Immunisations and vaccinations
Lifelong Abx prophylaxis
What are the four lobes of the liver?
Left and right
What are the four ligaments of the liver?
Left and right triangular (connect to diaphragm)
Functionally, the quadrate lobe of the liver is related to which other lobe?
Functionally, the caudate lobe of the liver is related to which other lobe?
What structures enter and exit the liver at the porta hepatis?
Hepatic artery (branch of celiac trunk)
Common bile duct (exiting)
What percentage of blood supply comes from the hepatic artery and portal veins respectively?
25% hepatic artery
75% portal vein (from spleen)