In the kidney, vasoconstriction of the afferent arterioles increases glomerular filtration rate,...
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In the kidney, vasoconstriction of the afferent arterioles increases glomerular filtration rate, because hydro-static pressure in the glomerular capillaries increases (much like putting your thumb over the end of a garden hose increases the pressure and causes the water to exit the hose with greater velocity and travel a greater distance).
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Explain.
The Kidneys
The kidneys function to maintain homeostasis in the body. Their actions include the filtration of waste products from blood, maintenance of the water-electrolyte balance and excretion of urine.
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Kidneys: Structure & Function
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Chapter 25 / Lesson 2
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The kidneys are two bean-shaped organs that filter the blood to remove waste, leaving only nutrients needed by the body. Learn about the structure and functions of kidneys, such as cleaning up bloodborne waste products, balancing bodily fluids, and other important functions.
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