Spleen
The Spleen
- Size of a cupped hand; lies 9-11 ribs
- Forms left lateral extremity of lesser sac
- Ligaments - gastrosplenic, lienorenal
- Notched: hilum
- Blood supply: splenic artery
Relations
- Posterior: left diaphragm
- anterior: stomach
- Inferior: splenic flexure
- Medially: left kidney
Functions of the spleen
- Filtration - removal of old/abnormal red blood cells, white cells, platelets and cellular debris
- Immunological - produces opsonin, antibody synthesis and protection from infection
- Storage: 35% platelets are stored in spleen
Features in trauma to suspect splenic injury
- Direct blunt trauma
- Guarded tender abdomen
- Low rib fractures (9-11 ribs)
- Shock
- Shoulder tip pain (phrenic nerve)
