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Renin Angiotensin Aldosterone System (view source)
Revision as of 14:19, 13 September 2010
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====Effects of Angiotensin 2 on Blood Pressure====
====Effects of Angiotensin 2 on Blood Pressure====
'''Angiotensin 2''' acts on '''AT1 receptors''' to stimulate the release of '''Aldosterone''' from the [[Adrenal Glands - Anatomy & Physiology#Adrenal Glands|Zona Glomerulosa]] of the adrenal glands. This mineralocorticoid increases the reabsorption of sodium and therefore water and chloride from the distal tubule thus helping to increase blood volume and pressure. It also stimulates the thirst center and increases the secretion of [[Pituitary Gland - Anatomy & Physiology #Posterior Pituitary Gland | ADH]] to help increase blood volume. Thanks to the RAAS pressure can return to 50% baseline within 15 minutes of haemorrhage.
'''Angiotensin 2''' acts on '''AT1 receptors''' to stimulate the release of '''[[Aldosterone]]''' from the [[Adrenal Glands - Anatomy & Physiology#Adrenal Glands|Zona Glomerulosa]] of the adrenal glands. This mineralocorticoid increases the reabsorption of sodium and therefore water and chloride from the distal tubule thus helping to increase blood volume and pressure. It also stimulates the thirst center and increases the secretion of [[Pituitary Gland - Anatomy & Physiology #Posterior Pituitary Gland | ADH]] to help increase blood volume. Thanks to the RAAS pressure can return to 50% baseline within 15 minutes of haemorrhage.
====Effects of Angiotensin 2 on GFR====
====Effects of Angiotensin 2 on GFR====