Renal Physiology

Renal Physiology - Kidney Structure and Function The kidney...

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Kidney Structure and Function The kidney has two distinct regions, the cortex and the medulla Creates a concentration gradient for the movement of water and solutes There is a vascular network composed of the efferent and afferent arterioles, the glomerulus, and the vasa recta Provide filtration driving pressure and allow for reabsorption of material back into the blood The functional unit is the nephron Allows for selective filtration, secretion and absorption The kidney filters the blood and is responsible for: Regulating fluid balance and blood volume/blood pressure Absorbing or secreting sodium and water Secreting regulatory hormones Maintaining body pH Absorption or secretion of bicarbonate and urea Regulating ion levels Potassium, calcium, magnesium, glucose and other solutes
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Filtration and Clearance Materials enter the nephron through a process called filtration Water and solutes small enough to pass through the capillary wall of
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Renal Physiology - Kidney Structure and Function The kidney...

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