Marginalism is a theory of economics that attempts to explain the discrepancy in the value of goods and services by reference to their secondary, or marginal, utility. The reason why the price of diamonds is higher than that of water, for example, owes to the greater additional satisfaction of the diamonds over the water.
A large amount of circulating blood flows through the kidneys. Approximately 25% of the cardiac output or 1200 ml of blood per minute is received by the kidneys. One liter of urine is the end product of more than 1000 liters of circulating blood processed through the kidneys. large amount of circulating blood flows through the kidneys. Approximately 25% of the cardiac output or 1200 ml of blood per minute is received by the kidneys. One liter of urine is the end product of more than 1000 liters of circulating blood processed through the kidneys.
The two kidneys are only 0.4% of the body weight but receive about 25% of the blood. Their most important function in the body is to regulate the composition and volume of body fluids. Blood flows in and out of kidney leaving behind the 1% which becomes urine.The urine produced flows through ureters to the bladder and through urethra to outside world. The typical kidneys filter approximately 180 liters of plasma/day and each of the 3 liters of plasma gets filtered about 60 times.To replace this much water you would have to drink a 12 ounce soft drink every 3 minutes of the day; fortunately 99% of the filtrate gets reabsorbed, leaving 1.5-2 liters of urine per day.he two kidneys are only 0.4% of the body weight but receive about 25% of the blood. Their most important function in the body is to regulate the composition and volume of body fluids. Blood flows in and out of kidney leaving behind the 1% which becomes urine.