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Questions and Answers
How is fluid largely regulated in the body?
How is fluid largely regulated in the body?
- Facilitated diffusion
- Passive diffusion (correct)
- Osmosis
- Active transport
What percentage of water by mass are human beings as adults?
What percentage of water by mass are human beings as adults?
- 65%
- 60% (correct)
- 75%
- 50%
What influences fluid movement between spaces in the body?
What influences fluid movement between spaces in the body?
- Osmotic pressure only
- Hydrostatic pressure only
- Temperature changes
- Both osmotic and hydrostatic pressures (correct)
What is the approximate percentage of water by mass in human infants?
What is the approximate percentage of water by mass in human infants?
Which two types of body fluid are similar in composition?
Which two types of body fluid are similar in composition?
Flashcards
Fluid Regulation
Fluid Regulation
Fluid movement is mainly regulated through passive diffusion in the body.
Adult Body Water Content
Adult Body Water Content
Adult human beings are approximately 60% water by mass.
Influences on Fluid Movement
Influences on Fluid Movement
Fluid movement is affected by osmotic and hydrostatic pressures.
Water Content in Infants
Water Content in Infants
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Similar Body Fluids
Similar Body Fluids
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Study Notes
Fluid Regulation in the Body
- Fluid is largely regulated in the body through a balance of fluid intake and output, as well as the body's ability to control the distribution of fluid between different compartments.
Water Composition in Humans
- As adults, human beings are approximately 55-60% water by mass.
- In human infants, the percentage of water by mass is approximately 70-80%.
Factors Influencing Fluid Movement
- Fluid movement between spaces in the body is influenced by factors such as hydrostatic pressure, osmotic pressure, and capillary permeability.
Similar Body Fluids
- Blood plasma and interstitial fluid are two types of body fluid that are similar in composition.
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