The Percentage of Fluid in the Human Body
CH. 25
1. At which stage of life is the percentage of fluid in the human body highest? Infancy
2. In elderly individuals, 75% of body weight is made up of fluid.
True
False
3. When comparing two individuals of the same body weight, the one with more muscle and less fat will have a higher percentage of fluid in their body.
4. When comparing a lean adult female to a lean adult male, which will most likely have a higher percentage of body fluid? The Male
5. Fluid imbalances are more common in individuals with a _________ percentage of body fluid. Low
6. Elderly individuals generally have a _______ percentage of body fluid and are therefore _______ prone to fluid imbalances. Low/more
7. A comparison of the two major body fluid compartments reveals that: two-thirds of the total fluid is within our cells and one-third is outside our cells.
8. Most of the fluid in our body is contained within our cells.
9. The plasma of our blood constitutes ______ than half of the fluid in our body; plasma is part of the _____________ fluid. Less/extracellular
10. Interstitial fluid composes about ________ of the body's extracellular fluid. 2/3
11. Interstitial fluid has a relatively _______ concentration of sodium and chloride; the concentrations of ions within the interstitial fluid and blood plasma are very ______. High/different
12. Which statement accurately describes the permeability to water of the cell membrane and the capillary wall? Both the plasma membrane and the capillary wall are permeable to water.
13. Drinking a liter of water will cause the osmolarity of blood plasma to: decreases
14. If someone runs a marathon through a desert while eating pretzels and not drinking water, their plasma osmolarity: rises and becomes hypertonic to the interstitial and intracellular fluid compartments.
15. As an individual becomes dehydrated, the net movement of fluid in their body is from cells toward plasma.
16. When fluid intake equals fluid output, and there is a
1. At which stage of life is the percentage of fluid in the human body highest? Infancy
2. In elderly individuals, 75% of body weight is made up of fluid.
True
False
3. When comparing two individuals of the same body weight, the one with more muscle and less fat will have a higher percentage of fluid in their body.
4. When comparing a lean adult female to a lean adult male, which will most likely have a higher percentage of body fluid? The Male
5. Fluid imbalances are more common in individuals with a _________ percentage of body fluid. Low
6. Elderly individuals generally have a _______ percentage of body fluid and are therefore _______ prone to fluid imbalances. Low/more
7. A comparison of the two major body fluid compartments reveals that: two-thirds of the total fluid is within our cells and one-third is outside our cells.
8. Most of the fluid in our body is contained within our cells.
9. The plasma of our blood constitutes ______ than half of the fluid in our body; plasma is part of the _____________ fluid. Less/extracellular
10. Interstitial fluid composes about ________ of the body's extracellular fluid. 2/3
11. Interstitial fluid has a relatively _______ concentration of sodium and chloride; the concentrations of ions within the interstitial fluid and blood plasma are very ______. High/different
12. Which statement accurately describes the permeability to water of the cell membrane and the capillary wall? Both the plasma membrane and the capillary wall are permeable to water.
13. Drinking a liter of water will cause the osmolarity of blood plasma to: decreases
14. If someone runs a marathon through a desert while eating pretzels and not drinking water, their plasma osmolarity: rises and becomes hypertonic to the interstitial and intracellular fluid compartments.
15. As an individual becomes dehydrated, the net movement of fluid in their body is from cells toward plasma.
16. When fluid intake equals fluid output, and there is a