Iron Absorption – Fe
++
or Fe
+++
Process of iron absorption:
Heme (Fe
++
)
Absorbed by mucosal cells
CO
bilirubin
iron
mobilferritin
Iron-mobilferritin
Fe
+++
nonheme (Fe
+++
)
Acid
pH
Fe
++
Absorbed by mucosal cells
Fe
+++
apoferritin
ferritin
Stored in liver,
spleen, & bm
hemosiderin
apotransferrin
transferrin