Thyroid Flashcards
1
Q
What does the thyroid gland secrete?
A
Thyroxine (T4)
Tri-iodothyronine (T3)
Calcitonin
2
Q
What cells are present in the thyroid gland?
A
Follicular cells
Parafollicular C cells that secrete calcitonin
3
Q
What converts T4 to T3?
A
Liver & Kidney
4
Q
What is more potent, T3 or T4?
A
T3, by ~4X
5
Q
Describe T3 and T4?
A
Hydrophobic and lipophillic so bind to plasma proteins
6
Q
What are the physiological effects of thryoid disease?
A
Metabolism Growth Development Reproduction Behaviour