MRCS PART A · APPLIED BASIC SCIENCES
Stomach–spleen ligaments & pancreatic-tail relationships
Trace a fold between its attachments, identify what travels through it, then distinguish arterial supply from venous drainage. Two selected anatomy objectives and four original SBAs. No operative mobilisation, vessel division or treatment instructions.
2 topics · 4 original SBAs
1 · A splenic parent can supply the stomach
Your task: Match gastrosplenic attachments and vessel contents; trace short gastric supply without confusing it with colonic anatomy.
What does the gastrosplenic ligament connect?
The greater-curvature region of the stomach and splenic hilum. Gastrolienal is another name for the same fold; 'lienal' means splenic.
Which nearby fold instead connects stomach to transverse colon?
The gastrocolic ligament. Sharing a gastric attachment does not make its other attachment or contents identical.
Which vessels are conventionally associated with the gastrosplenic fold?
Short gastric vessels and left gastro-omental (left gastroepiploic) vessels. The short gastric arteries travel towards the fundus and adjacent upper greater-curvature region.
Does a splenic arterial origin mean the destination must be spleen?
No. Short gastric arteries arise from the splenic arterial system but supply stomach. Separate the parent artery, route and final territory.
Can I infer gastric tissue perfusion from one intact parent vessel?
Not completely. Individual branches, other gastric contributions and functional flow matter. This lesson does not establish the safety of interrupting a vessel.
Is splenic flexure supply the same as splenic artery supply?
No. The flexure is colon, named for its location near the spleen. Its conventional supply involves middle-colic and left-colic systems rather than being defined by the splenic artery's name.
What is the useful exam habit?
Trace the actual target organ and vessel course before selecting a parent. Anatomical proximity and similar names are not sufficient evidence of supply.
2 · Splenorenal fold: vessels and a neighbouring organ
Your task: Locate the pancreatic tail and distinguish a ligament's name from all of its contents and vascular connections.
Where does the splenorenal ligament extend?
From the splenic hilum towards the posterior abdominal wall over the left kidney. Lienorenal is a synonym. It is distinct from the fold running towards the stomach.
Which structures should I associate with it near the hilum?
Splenic vessels and the pancreatic tail in the conventional anatomical arrangement. 'Renal' in the fold's name does not mean its main contents are the renal pedicle.
Must every pancreatic part have the same peritoneal relationship?
No. The tail extends within the splenorenal fold towards the hilum; the body is conventionally secondarily retroperitoneal. Localise the pancreatic part rather than applying one whole-organ label.
Does a close hilar relation prove that tail tissue is always fused to spleen?
No. A conventional relation is not proof of one fixed tissue plane or separation distance in every patient. It cannot define an operative plane.
Does the splenic vein receive blood only from the spleen?
No. Pancreatic tributaries also enter the splenic venous system. Anatomical studies document pancreatic-tail veins joining splenic venous branches, with variable patterns.
Does preserving a named main vein prove every tributary is intact?
No. Main-conduit continuity and continuity of each tributary are different questions. A complete map must show the particular connections; this is not a venous reconstruction or treatment guide.