When concentrations of antidiuretic hormone are low, water reabsorption in the collecting ducts is ________, causing urine output to be ________.Question 39Answera.high : lowb.low : highc.high : highd.unaffected : unchangede.low : low
Question
When concentrations of antidiuretic hormone are low, water reabsorption in the collecting ducts is ________, causing urine output to be ________.Question 39Answera.high : lowb.low : highc.high : highd.unaffected : unchangede.low : low
Solution
When concentrations of antidiuretic hormone (ADH) are low, water reabsorption in the collecting ducts is low, causing urine output to be high. So, the answer is b. low : high.
Here's why: ADH's primary function is to regulate the body's water balance by controlling the amount of water reabsorbed by the kidneys. When ADH levels are low, less water is reabsorbed by the kidneys and more water is excreted in the urine, leading to a higher urine output. Conversely, when ADH levels are high, more water is reabsorbed by the kidneys and less water is excreted in the urine, leading to a lower urine output.
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The human body monitors the amount of water in the blood. When there is too little water, a message is sent to the pituitary gland causing the release of antidiuretic hormone (ADH). ADH causes the kidneys to re-absorb water from the urine so that the blood water level returns to the normal range.This is an example of:
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