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What is the purpose of making urine in the human body?
To empty the urinary bladder
To filter out waste products from the blood
To clean the impure blood coming to the heart
To remove CO2тАЛ from the blood in the lungs
To filter out waste products from the blood
The primary purpose of making urine in the human body is to filter out nitrogenous and metabolic waste products, such as urea and uric acid, from the blood.
The primary purpose of making urine in the human body is to filter out nitrogenous and metabolic waste products, such as urea and uric acid, from the blood.
Just like a water purifier filters out impurities and flushes them down the drain while keeping the clean water for drinking, our kidneys filter metabolic waste from the blood to be excreted as urine.
K-U-B-E: Kidneys Use Blood Evaluation to excrete wastes.
GFRтЙИ125┬аmL/min тАФ Glomerular Filtration Rate in humans
Blood flows through the glomerulus inside the Bowman's capsule of nephrons in the kidneys, where ultrafiltration occurs under high pressure. Useful substances like water, glucose, and salts are selectively reabsorbed, while toxic wastes and excess water are concentrated and excreted as urine.
The functional unit of the kidney is the nephron.
Urea is formed in the liver through the urea cycle and filtered out by the kidneys.
The urinary bladder stores urine temporarily before micturition (urination).
Kidneys also play a vital role in osmoregulation and maintaining blood pH.
Removes toxic nitrogenous wastes like urea and creatinine
Maintains blood pressure and ionic balance
Renal physiology
Clinical diagnosis through urinalysis
Option A refers to micturition, which is the expulsion of urine, not the primary purpose of its formation.
Option C describes the general role of the circulatory and respiratory systems.
Option D describes the primary function of the lungs in removing carbon dioxide.
B is correct тАФ To filter out waste products from the blood
Remember that lungs remove gaseous waste (CO2тАЛ), while kidneys remove soluble nitrogenous wastes (urea, uric acid) from the blood.
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