Most water leaves the body by way of the.. Kidneys



Most water leaves the body by way of the:

A- Lungs.
B- Intestines.
C- Skin.
D- Kidneys.

Correct Response: D

The kidneys, via urine, excrete approximately 60% of all water. Water, in lesser volumes, also leaves the body by way of lung expiration, skin perspiration, and through the intestines.

Can too much water damage kidneys?

If water is continuously taken in too much quantity, it may lead to kidney stones and chronic kidney diseases.” He added that sudden dehydration may lead to acute kidney failure and unconsciousness. People who had kidney or cardiac failures are usually unable to tolerate excessive fluid intake.

What reduces water weight?

Potassium can help to balance your body's salt/water ratio, helping to reduce water retention. Potassium can be found in fruits and vegetables like leafy greens, beans, nuts, dairy foods, and starchy vegetables2. It's recommended that adults have at least 2 servings of fruits and 3 servings of vegetables per day.

Where does water go when you drink it?

The water we drink is absorbed by the intestines, and circulated throughout the body in the form of body fluids such as blood. These perform various functions that keep us alive. They deliver oxygen and nutrients to the cells, and take away waste materials, which are then eliminated with urination.

What happens if you drink too much water?

When you drink too much water, your kidneys can't get rid of the excess water. The sodium content of your blood becomes diluted. This is called hyponatremia and it can be life-threatening.

Is your body 70% water?

Most of the human body is water, with an average of roughly 60%. The amount of water in the body changes slightly with age, sex, and hydration levels. While the average percentage of water in a person's body is around 60%, the percentage can vary from roughly 45–75%.

Is there 70% water in our body?

Up to 60% of the human adult body is water. According to Mitchell and others (1945), the brain and heart are composed of 73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.

How much water goes through your kidneys?

Bottom line: The kidneys can remove 20–28 liters of water per day, but they cannot excrete more than 0.8 to 1.0 liters per hour. Drinking more than this can be harmful.

Is most water reabsorbed in the kidney?

Answer and Explanation: Most water is reabsorbed from the filtrate into the blood in the proximal convoluted tubule. Osmosis stands out as the main process by which water is reabsorbed back to the blood in the proximal convoluted tubule.

How much water can kidneys remove?

Although the kidneys filter more than 150 L body fluid on a daily basis depending on glomerular filtration rate (GFR), less than 1% of filtered fluid is actually passed into the urine.

How is waste transported from the kidneys in the form of urine?

After urine forms in the kidneys, it is transported through the ureters (one per kidney) to the sac-like bladder, which stores the urine until urination. During urination, the urine is released from the bladder and transported by the urethra to be excreted outside the body through the external urethral opening.

Do kidneys release water?

If an excess of fluid is drunk, the body fluids become more diluted, and the kidneys excrete a more dilute urine, getting rid of the excess that has been taken in. These mechanisms are very efficient. If the body is in a satisfactory balance, approximately 80% of ingested fluid is excreted within an hour.

Does water go to the kidneys from the stomach?

Nearly all the water is absorbed into the bloodstream from the small intestine. The excess fluid absorbed in the blood is filtered by the kidneys, which produce the urine that is transported to the bladder.

How much water is lost by our body?

Water in our bodies


Most mature adults lose about 2.5 to 3 litres of water per day. Water loss may increase in hot weather and with prolonged exercise.

What causes the most water loss?

Excessive sweating.


If you do vigorous activity and don't replace fluids as you go along, you can become dehydrated. Hot, humid weather increases the amount you sweat and the amount of fluid you lose.

Which organ absorbs the most water?

Abstract. Absorption of ingested water and most solutes occurs in the proximal small intestine, therefore the rate at which beverages are emptied from the stomach is an important factor in determining the rate of water absorption.

In what ways does your body lose water?

Your body is constantly losing water through breathing, sweating, and urinating. If you do not take in enough fluids or water, you become dehydrated.

Where does the largest amount of water leave the body?

The body loses water primarily by excreting it in urine from the kidneys. Depending on the body's needs, the kidneys may excrete less than a pint or up to several gallons (about half a liter to over 10 liters) of urine a day.

How does water leave the kidneys?

The urine flows from the kidneys to the bladder through two thin tubes of muscle called ureters, one on each side of your bladder. Your bladder stores urine. Your kidneys, ureters, and bladder are part of your urinary tract. You have two kidneys that filter your blood, removing wastes and extra water to make urine.

Is most water eliminated by the kidneys?

Most water intake comes through the digestive tract via liquids and food, but roughly 10 percent of water available to the body is generated at the end of aerobic respiration during cellular metabolism. Urine produced by the kidneys accounts for the largest amount of water leaving the body.