Figure B Person with
Hyperthyroidism
feedback of thyroid hormones on the ante—
rior pituitary and hypothalamus results in
elevated TSH secretion. TSH causes increased
l thyroid gland cell size and number and
‘ increased thyroglobulin synthesis, even
though there is not enough iodine to synthe-
size thyroid hormones. Historically, goiters
were common in peOple from areas where
the soil was depleted of iodine. Come :3
quently, plants grown in these areas, called 5
goiter belts, had little iodine in them and 2
caused iodine-deficient diets. lodized salt has g
nearly eliminated iodine-deficiency goiters. g
However, it remains a problem in some develo
Figure B Person withHyperthyroidismfeedback of thyroid hormones on the ante— rior pituitary and hypothalamus results in elevated TSH secretion. TSH causes increased l thyroid gland cell size and number and ‘ increased thyroglobulin synthesis, even though there is not enough iodine to synthe- size thyroid hormones. Historically, goiters were common in peOple from areas where the soil was depleted of iodine. Come :3quently, plants grown in these areas, called 5goiter belts, had little iodine in them and 2caused iodine-deficient diets. lodized salt has gnearly eliminated iodine-deficiency goiters. gHowever, it remains a problem in some develo
การแปล กรุณารอสักครู่..
