Anatomy

Question 1

what does the thyroid gland secrete?

Answer 1

thyroxine, tri-odothyronine and calcitonin

Question 2

What does the parathyroid hormone secrete?

Answer 2

parathyroid hormone

Question 3

what os the thyroid gland made up of?

Answer 3

follicles that are made up of follicular cells and colloid tyrosine containing thyroglobulin spheres

Question 4

what is outside the follicle?

Answer 4

parafollicular C cells

Question 5

what is the process of iodine storage?

Answer 5

1- iodine taken up by follicular cells 2- iodine attaches to tyrosine residues on thyroglobulin 3- coupling of MIT and DIT 4- stored in colloid thyroglobulin

Question 6

which stage is inhibited by carbimazole and propylthiouracil

Answer 6

2

Question 7

what does carbimazole and propylthiouracil treat?

Answer 7

hyperthyroidism

Question 8

what is T4?

Answer 8

thyroxine

Question 9

what is a majorly biologically active thyroid hormone?

Answer 9

T3 (triiodothyronine)

Question 10

Are T3 and T4 hydrophobic or hydrophilic?

Answer 10

Hydrophobic

Question 11

Are T4 and T3 bound by plasma proteins?

Answer 11

Aye most of them

Question 12

is bound or unbound Ts/4 available to the tissues?

Answer 12

unbound!

Question 13

Do thyroid hormones increase responsiveness to adrenaline and sympathetic NS neurotransmitter, noradrenaline by increasing number of receptors?

Answer 13

yes

Question 14

what are some symptoms of hypothyroidism

Answer 14

reduced BMR, slow pulse, fatigue, lethargy, cold intolerance, tendency to put weight on easily

Question 15

what are hyperthyroidism sings?

Answer 15

Increased BMR, fast pulse, increased nervousness, sweating, lose weight