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Angiotensin II is the major bioactive product of the renin–angiotensin system, binding to receptors on intraglomerular mesangial cells, causing these cells to contract along with the blood vessels surrounding them; and to receptors on the zona glomerulosa cells, causing the release of aldosterone from the zona glomerulosa in the adrenal cortex.
The Runway Awareness and Advisory System (RAAS) is an electronic detection system that notifies aircraft flight crews on the ground of their position relative to their allocated runway. It is a type of Runway Situation Awareness Tool (RSAT).
English: The renin–angiotensin system (RAS) or the renin–angiotensin–aldosterone system (RAAS). Start reading this schematic from the left, where it says "Decrease in renal perfusion (juxtaglomerular apparatus)". Alternatively, the RAAS can also be activated by a low NaCl concentration in the macula densa or by sympathetic activation.
Renin (etymology and pronunciation), also known as an angiotensinogenase, is an aspartic protease protein and enzyme secreted by the kidneys that participates in the body's renin-angiotensin-aldosterone system (RAAS)—also known as the renin-angiotensin-aldosterone axis—that increases the volume of extracellular fluid (blood plasma, lymph, and interstitial fluid) and causes arterial ...
RaaS can be considered a unit of the Internet of Things (IoT), Internet of Intelligent Things (IoIT) that deal with intelligent devices that have adequate computing capacity, [3] Cyber-physical system (CPS) that is a combination of a large computational and communication core and physical elements that can interact with the physical world, [4 ...
Angiotensin-converting enzyme (EC 3.4.15.1), or ACE, is a central component of the renin–angiotensin system (RAS), which controls blood pressure by regulating the volume of fluids in the body. It converts the hormone angiotensin I to the active vasoconstrictor angiotensin II. Therefore, ACE indirectly increases blood pressure by causing blood ...
The renin–angiotensin–aldosterone system (RAAS) plays a key role in the pathology of cardiovascular disease, hypertension, diabetic kidney disease and heart failure. [17] Under normal conditions, stimulation of the RAAS occurs in response to threats that compromise blood pressure stability, such as hypotension , blood loss and excessive ...
Calculating the serum sodium over urinary sodium to serum potassium over urinary potassium and the (serum sodium to urinary sodium to (serum potassium) 2 (SUSPPUP) ratios delivers calculated structure parameters of the RAAS, which may be used as a static function test. [23] [24] Its results have to be confirmed by calculating the ARR.