The following points highlight the four main endocrine functions of adrenal cortex. The functions are: 1. Adrenal Cortex 2. Adrenal Androgens 3. Aldosterone 4. Endocrine Function of Adrenal Medulla. Function # 1. Adrenal Cortex: It is divisible into three different layers, from outwards within will be: i. Zona glomerulosa ii. Zona fasciculata iii. Zona reticularis. All three layers secrete the [...]
In this article we will discuss about:-1. Secretion of Thyroid Glands 2. Actions of the Thyroid Gland 3. Regulation 4. Thyroid Function Tests. Secretion of Thyroid Glands: The hormones secreted by this gland are: i. Thyroxine (T4) ii. Triiodothyronine (T3) iii. Thyrocalcitonin (calcitonin) Among the three hormones, the follicular cells of the gland secrete the first two hormones (T3 and [...]
In this article we will discuss about the regulation of PTH and calcitonin secretion. Decrease in plasma calcium level increases PTH secretion and when plasma calcium level increases, there will be increased secretion of calcitonin. (Fig. 6.52) Apart from the plasma calcium level, some of the other factors which can affect the secretion of PTH are: i. Decreased plasma magnesium [...]