NEETZoologyChemical Coordination and Integration
What are the hormones synthesised by follicular cells?
Options
- AT₃ and T₄
- BT₂ and T₃
- CT₃ and T₂
- DT₂ and T₄
Correct answer
A. T₃ and T₄
Step-by-step solution
The thyroid gland is composed of two lobes which are located on either side of the trachea (Figure 19.3 a). Both the lobes are interconnected with a thin flap of connective tissue called isthmus. The thyroid gland is composed of follicles and stromal tissues. Each thyroid follicle is composed of follicular cells, enclosing a cavity. These follicular cells synthesise two hormones, tetraiodothyronine or thyroxine (T4) and triiodothyronine (T3). Thyroid hormones play an important role in the regulation of the basal me