19 - Thyroid

Question 1

what hormones are secreted by the Thyroid gland?

Answer 1

Thyroxine and Triiodotyronin

t4 and t3

Question 2

What secretes calcitonin

Answer 2

the C-cells of the thyroid gland

Question 3

Iodine deficiency cause defficits in

Answer 3

T4

Question 4

Through what system does thyroid hormone transport idodes ?

Answer 4

NIS - Na+ Iodide symporter

Question 5

How are thyorid hormones formed

Answer 5

Using E.R and Golgi .. who secrete Thyroglobullin - which will combine the iodines from diet to tyrosine.. 1 thyroglobullin has like 70 tyrosine molecules

Question 6

What is organofication

Answer 6

Oxidizing iodine in tyorsine using Peroxidases

Question 7

How are T.H activated?

Answer 7

Through nuclear trnascription, forming a RXR

Higher affinity for T3, so T4 are - 1 iodided to T3

Question 8

Non Genomic T.H

Answer 8

• Regulation of ion channels
  and
  -Oxid phosphorylation

Question 9

High and Low level of thyroid hormone on [ ] of fat

Answer 9

High level = dec [ ] cholest / phospholipid / TAG

but Inc F. FA