quiz 6 Flashcards
a bilobed organ responsible in increasing the basal metabolic rate
gland
the fundamental structural and functional unit of the thyroid gland
thyroid follicles
the proteinaceous fluid in the lumen bounded by the thyroid follicles
colloid
the hypocalcemic hormone produced by the thyroid gland
calcitonin
regarded as the prohormone of thyroid hormones T3 and T4
thyroglobulin
the amino acid precursor of thyroid hormones T3 and T4
tyrosine
the inactive type of triiodothyronine
reverse T3
the reference range of T3 in the plasma
1.23-3 nM) 80-
200 ng/dl
the reference range of T4 in the plasma
72-163 nM) 5.5 -
12.5 ug/dl
the enzymes responsible in the peripheral conversion of T4 to T3
deiodinases
another name for 3,5,3’,5’-tetraiodothyronine
t4 or thyroxine
the normal T4 to T3 ratio
10:1 NOT 1:10
the state characterized by normal blood thyroid hormone levels
euthyroid
the hypothalamic hormone that regulates thyroid hormone synthesis
TRH or
thyrotropin
releasing hormone
the type of feedback exhibited by the thyroid gland to the pituitary
negative
feedback
