The thyroid is controlled by the pituitary gland, a hormonal gland deep in the brain that oversees the thyroid's tasks, making sure it knows  when to send out its messengers.
Štitnjaču kontrolira hipofiza, hormonska žlijezda duboko u mozgu koja nadgleda sve zadatke štitnjače, brinući se za to da zna kada poslati svoje glasnike.