GENERAL ANATOMY
URINARY SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Helps reabsorb water from the collecting ducts
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Adjusts blood flow into the vasa recta
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Produces a concentrated urine
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Monitors blood sodium concentration and adjusts glomerular filtration volume
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Detailed explanation-1: -The juxtaglomerular apparatus is an anatomical unit located at the hilus of the glomerulus and is believed to be involved in feedback control of renal blood flow and glomerular filtration rate.
Detailed explanation-2: -Juxtaglomerular cells are responsible for the production, storage, and release of a hormone called renin which regulates blood pressure. They are also called granular cells as they have a large amount of renin-secreting granules. They sense the blood pressure in the arteriole and release an adequate amount of renin.
Detailed explanation-3: -The juxtaglomerular apparatus (JGA), consisting of the glomerular afferent and efferent arterioles and the specialized tubular epithelial cells called the macula densa, plays a central role in the regulation of glomerular hemodynamics and renin release.
Detailed explanation-4: -It is true that the juxtaglomerular apparatus helps to maintain a constant pressure within the glomerulus. Its principal function is to control blood pressure and glomerulus filtration rate.