Spleen

Spleen :-

1. Spleen is a dark purplish gland lying on the left of abdomen
2. Spleen is mesodermal In origin
3. Spleen is covered by a capsule & contain stroma
4. Within. Stroma , spleen tissue is differentiated into white pulp & red pulp
5. White pulp is lymphoid tissue around arteries containing lymphocytes and splenic nodules or marphigian corpusles
6. Red pulp consists of venous sinuses with RBCs and splenic or Billroth’s cords
7. Spleen serves as a sort of blood bank, the sinuses of spleen act as “reservoir of blood”
8. When a patient is affected by malaria , enlargement of spleen occur , due to massive increase in phagocytic cell
9. In malaria infection, enlarged spleen secretes lysolecithin that destroys the RBCs
10. The surgical removal of spleen is called “Splenectomy”
11. Spleen Is located close to the alimentary canal , but has nothing to do with digestive system