chapter 8-5 Flashcards
iodine is part of
thyroxine which regulates basal metabolism and growth and development
iodine is critical during
pregnancy for fetal growth and development
iodine must be present in
adequate amounts during pregnancy to prevent permanent damage to the fetus
simple goiter as an enlargement of
the thyroid gland
cretinism is an iodine deficiency during pregnancy causing
iodine deficiency in developing fetus
in sea salt iodine changes into a
gas and evaporates away during production
every living cell contains
iron
iron is in
hemoglobin and myoglobin
iron is present in
energy metabolism
iron is needed to make
amino acids, hormones, and neurotransmitters
iron is needed for
cellular growth
iron from rbc’s are recycled and stored in
bone marrow
special proteins transport and store
iron
tiny amounts of iron are lost from
nail and hair trims
digestive tract
shed skin cells
significant amts of iron can be lost from
bleeding
causes of iron deficiency and anemia
inadequate iron intake
blood loss
the groups most susceptible to iron deficiency
women in reproductive years
infants and toddlers
obese ppl
those on severely restricted diets
signs of iron deficiency
iron-deficiency anemia
mental symptoms
pica
two forms of iron absorption
heme and nonheme iron
heme iron is found predominately in
animal muscle and organ tissue and is more easily absorbed
nonheme is found predominately in
plant foods, cast iron cookware, and trace amounts in animal muscle and organ tissue
hepcidin regulates
blood iron levels
only ____ to ____ % of iron consumed is absorbed
10-15
iron absorption promoters
heme iron
vitamin C sources
MFP factor (meat, fish, poultry)
cast iron cookware
