Explain Three Mechanisms Intrinsic To The Kidneys In The Glomerular Filtration Rate

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Three mechanisms intrinsic to the kidneys controls, in part, the Glomerular filtration rate. Two mechanisms act by changing the resistance or diameter of afferent arterioles. When the afferent arteriole tighten, within the glomerular capillaries, the pressure decreases. Myogenic regulation is the first of the intrinsic mechanisms that are arteriole-related. Arteriole constriction is when there is an increase in stretch, as observed if pressure increases. To maintain GFR, constriction tends to limit the change in pressure all throughout the glomerular capillaries. The second arteriole-related intrinsic mechanisms, called tubuloglomerular feedback, involve the juxtaglomerular apparatus, where the afferent and efferent arterioles come in contact
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