Question
Biology Question on chemical coordination and integration
Addisons disease results from :
hypertrophy of gonads
hypo-secretion of adrenal cortex
hyperactivity of cells of Leydig
none of the above
hypo-secretion of adrenal cortex
Solution
Addison's disease is an endocrine disorder, that manifests as primary adrenal insufficiency, which involves pathology in the adrenal glands. The condition develops as a result of bilateral adrenal cortex destruction. Damage to the adrenal cortex results in decreased production of adrenocortical hormones, with inadequate cortisol, aldosterone, and adrenal androgen produced. Autoimmune factors are responsible for the destruction of the adrenal glands in most cases, but infection (such as tuberculosis) hemorrhage, adrenal vein thrombosis, and carcinoma are also known to be the cause of a significant number of cases.