Endocrinology (4A)

Question 1

Thyroid gland sits at the neck area, bi__ structure.

Answer 1

lobe

Question 2

Thyroid has follicles that are filled with a ____ and are covered by follicular cells.

Answer 2

colloid

Question 3

Resting follicle has smaller ___ and large area of colloid.

Active follicle has larger ___ and smaller aeprea of colloid.

Answer 3

epithelial cell

Question 4

Parafollicular cells secrete ___.

Answer 4

calcitonin

Question 5

Thyroid follicles secretes (2):

Answer 5

T3, T4

Question 6

Thyroid hormones are synthesized from (2):

Answer 6

Tyrosine and iodine

Question 7

The intermediates of thyroid hormones are the (2):

Answer 7

Monoiodotyrosine
Di-idotyrosine

Question 8

Active hormones and product of T3 and T4 have the name of:

Answer 8

Tri-iodothronine
Tetriodothyronine (thyroxine)

Question 9

T4 is made in ___ amounts than T3 and can be used to make T3 at target sites.

Answer 9

larger

Question 10

T3 is ____x more potent than T4 because it is the most active form that we require in the body.

Answer 10

3-8

Question 11

T4 is converted to T3 in the peripheral cells and ___.

Answer 11

liver

Question 12

Thyroid hormones (4):

Answer 12

Act on most tissues and change transcription and translation
Increase metabolism
Required for growth and development
Body heat/constant temperature