In this article we will discuss about the role of PTH and Vit. D3 in calcium metabolism. Role of PTH in Calcium Metabolism: Hypocalcemia in blood stimulates parathyroid gland for PTH secretion. During calcium metabolism, it shows following functions— 1. On bones: Drop of Ca++ level in blood, stimulates PTH secretion. PTH uses bones as Ca++-bank from which it withdraws [...]
In this article we will discuss about Role of Hormones in Osmoregulation, Excretion and Thermo Regulation. Endocrine Control on Osmoregulation and Excretion: In mammals, kidney is the main excretory organ. Kidney not only eliminates nitrogenous waste metabolites but also helps in osmoregulation. 1. Regulation of Water Retention: Hormone vasopressin is secreted from neurohypophysis. The chief action of this hormone is [...]
Let us Learn about the Disorders of Adrenal Cortical Hormones. Due to Hypo secretion of Glucocorticoids/Cortisol: (A) Addison's disease: Thomas Addison (1855) first described this disease. It occurs due to hypo secretion of cortical glucocorticoids. It may be due to bilateral tubercular destruction or due to tubercular infection or due to autoimmune diseases. The clinical features are as follows: (i) [...]