quiz 6

Question 1

a bilobed organ responsible in increasing the basal metabolic rate

Answer 1

gland

Question 2

the fundamental structural and functional unit of the thyroid gland

Answer 2

thyroid follicles

Question 3

the proteinaceous fluid in the lumen bounded by the thyroid follicles

Answer 3

colloid

Question 4

the hypocalcemic hormone produced by the thyroid gland

Answer 4

calcitonin

Question 5

regarded as the prohormone of thyroid hormones T3 and T4

Answer 5

thyroglobulin

Question 6

the amino acid precursor of thyroid hormones T3 and T4

Answer 6

tyrosine

Question 7

the inactive type of triiodothyronine

Answer 7

reverse T3

Question 8

the reference range of T3 in the plasma

Answer 8

1.23-3 nM) 80-
200 ng/dl

Question 9

the reference range of T4 in the plasma

Answer 9

72-163 nM) 5.5 -
12.5 ug/dl

Question 10

the enzymes responsible in the peripheral conversion of T4 to T3

Answer 10

deiodinases

Question 11

another name for 3,5,3’,5’-tetraiodothyronine

Answer 11

t4 or thyroxine

Question 12

the normal T4 to T3 ratio

Answer 12

10:1 NOT 1:10

Question 13

the state characterized by normal blood thyroid hormone levels

Answer 13

euthyroid

Question 14

the hypothalamic hormone that regulates thyroid hormone synthesis

Answer 14

TRH or
thyrotropin
releasing hormone

Question 15

the type of feedback exhibited by the thyroid gland to the pituitary

Answer 15

negative
feedback