HISTOLOGY
DIGESTIVE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Causes buildup in the stomach acid
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Regulates the concentration of water and soluble substances by filtering the blood
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Creates muscular contractions to move the food
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None of the above
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Detailed explanation-1: -A Nephron. A nephron is the basic structural and functional unit of the kidneys that regulates water and soluble substances in the blood by filtering the blood, reabsorbing what is needed, and excreting the rest as urine.
Detailed explanation-2: -The nephron Each kidney contains over one million microscopic filtering units called nephrons . Each nephron is made of a kidney tubule and is responsible for ‘cleaning’ the blood by removing urea, excess water and mineral ions. The nephrons reabsorb as much water as is needed by the body to maintain the water balance.
Detailed explanation-3: -The majority of water reabsorption that occurs in the nephron is facilitated by the AQPs. Most of the fluid that is filtered at the glomerulus is then reabsorbed in the proximal tubule and the descending limb of the loop of Henle.