fuelolz.blogg.se - Hormone secreted by adrenal gland

Description : : a bilateral endocrine gland composed of an outer cortex that produces steroid hormones and inner medulla that produces catecholamines (e.g., epinephrine).

Diseases of the adrenal glands include adrenal insufficiency (due to an infection, hemorrhage, or autoimmune destruction), hyperaldosteronism (due to hyperplasia or adenoma), and hypercortisolism (due to hyperplasia, adenoma, or exogenous administration). Mineralocorticoids regulate renal sodium and water reabsorption and potassium excretion, while glucocorticoids play an important role in glucose metabolism. The adrenal cortex consists of three layers: the zona glomerulosa, the zona fasciculata, and the zona reticularis, which are responsible for the synthesis of mineralocorticoids, glucocorticoids, and androgens (precursors for estrogen and testosterone), respectively. The adrenal medulla is composed of chromaffin cells, which secrete catecholamines ( norepinephrine, epinephrine, dopamine). The adrenal gland has two layers: the adrenal cortex (outer layer), which is derived from the mesoderm, and the adrenal medulla (inner layer), which is derived from neural crest cells. The lymphatics drain into the left aortic and the right caval lymph nodes.

It receives its arterial supply from the superior, middle, and inferior suprarenal arteries and drains into the right and left suprarenal veins. For additional information visit Linking to and Using Content from MedlinePlus.The adrenal gland is a paired retroperitoneal organ located on the upper pole of each kidney. Any duplication or distribution of the information contained herein is strictly prohibited without authorization. Links to other sites are provided for information only - they do not constitute endorsements of those other sites. A licensed physician should be consulted for diagnosis and treatment of any and all medical conditions.

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