Q. Regarding the control of thyroid secretion: (Solved)
1. free T3 and T4 exert feedback control on anterior pituitary
2. free T3 and T4 exert feedback control on hypothalamus
3. free T3 and T4 exert feedback control on anterior pituitary and hypothalamus
4. free T3 and T4 do not affect day to day control of their secretion
5. the basal metabolic rate is the most important determinant of thyroid secretion
- c. free T3 and T4 exert feedback control on anterior pituitary and hypothalamus