Thyroid and Parathyroid Gland
Math / Symbols
|Below the cricoid cartilage|| |
Where is the thyroid gland located anatomically?
| Identify 1. |
It is the "gurpy stuff" that fills the thyroid follicular cell.
| 1 - Collects & actively transports ioidide|
2 - Synthesizes thyroglobulin & secretes it into colloid
|What are the functions of the follicular cells? (2)|
| 1 - Follicle cells endocytize & proteolyse thyroglobun. |
2 - Thyroid hormones then diffuse into circulation & bind to TBG.
|What is the mechanism of hormone release in follicular cells?|
| 1 - Triiodothyronine (T3) and Thyroxine (T4) |
2 - T3 >> T4
3 - Stimulated by TSH (Thyroid stimulating Hormone)
4 - 99% are bound to TBG (Thyroid Binding Globulin)
| 1 - What hormones are secreted by the thyroid gland? (2) |
2 - Discuss the relative potency of these hormones.
3 - How are these hormones stimulated?
4 - In circulation, most T4 and T3 are bound to ___________.
| 1 - Stores Iodine! |
2 - 100-day supply of T4 precursors.
Pts with disease will then have slow progression.
| 1 - What is the function of the Thyroid Gland? |
2 - In case there is no dietary intake, how much does iodine does the thyroid gland store?
|...||What are the physiologic effects of T3 and T4?|