IronDeficiency/MicrocyticAnemiaThe most common type of Nutritional anemiaAffectsallagesOftenassociated with chronic blood loss due toHeavy menstruation (Menorrhagia)Frequent menstruation (Metrorrhagia)Chronic gastrointestinal(G.l.)bleedsIntestinal parasites
ExcesslronandHemochromatosisHemochromatosisAutosomalrecessive&Excessiveironaccumulationintheliverfromthegut due to abnormal absorption of normal ironintake resulting in organ dysfunction- Iron also deposited in pancreas, heart, adrenal, thyroidparathyroid, and anterior pituitaryLiverturns a rusty brown color(hepatocytesdying)Increasedrisk of hepatocellularcarcinomaNot to be confused with hemosiderosis-Iron overload from any other cause suchas frequenttransfusions ordietaryoverconsumption
Excess Iron and Hemochromatosis
IntrinsicFactorand VitaminB12AbsorptionVitaminB,z(oobalamin)Intrinsicfactor(IF)Bz-transcobalamincomplexStomachB12-1FcomplexTranscobalaminllMesentericveinsParietal cellIFreceptorEpithelialcellsofterminallleumlleumEplthelialcells
Intrinsic Factor and Vitamin B12 Absorption