It helps the gills facilitate osmotic pressures via ducts and membranous sacs
production of red blood cells and immune response
The function of a shark's spleen is to produce, degrade, and store red blood cells.
spleen
Spleen
Spleen
Almost all vertebrates have a spleen. This means they have a "backbone". The function of the spleen is to filter the blood and to act as a reserve in case of heavy bleeding.
the spleen
The spleen has the hemolytic function of destroying worn-out red blood cells and releasing their hemoglobin for reuse.
The spleen's function is to store blood, disintegrate the old blood cells, filter any foreign substances from the blood, and produce lymphocytes.
Spleen
spleen
The main function of a perch in a tree is that it gives birds and other animals a place to roost or sit. A perch is secure and permanent.