Endorcrinology Part 2

Question 1

a bilobed organ responsible in increasing the basal metabolic rate

Answer 1

Glands

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 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

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 / Thyrotropin releasing hormone

Question 15

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

Answer 15

Negative feedback