Indicate in dotted lines how the volumes of water spaces change: ✓ with excess water intake ✓ with excess sodium intake when significant amount of water is removed from the body ✓when significant amount of sodium is removed from the body
Indicate in dotted lines how the volumes of water spaces change: ✓ with excess water intake ✓ with excess sodium intake when significant amount of water is removed from the body ✓when significant amount of sodium is removed from the body
Chapter18: Vitamins, Minerals, And Herbals
Section: Chapter Questions
Problem 24RQ
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Transcribed Image Text:Practical work.
Work 1. Water spaces of the organism.
Intracellular water space
Extracellular
40%
water space 20%
Water in the human body is about 60% of body weight and is distributed in two main water spaces:
intracellular (40%) and extracellular (20%). Water of the extracellular water space is in the composition
of blood plasma, intercellular fluid, lymph and a small amount in the composition of transcellular fluids
- cerebrospinal fluid, aqueous humor of the eye, joint fluid, etc. The fluids of these spaces have (despite
1
the different composition of electrolytes and other substances) the same osmotic pressure (they are
isoosmic). The osmotic concentration of blood plasma lies in the range from 285 to 310 mosmol/l.
H,O
When violations of water-salt balance, for
example, intake of an excess amount of
water or osmotically active substances into
the body occurs, water is redistributed
along the osmotic gradient between the
H,O
Nat
fluids of the internal environment of the
body and the intracellular fluid.
Na
Img. 22. Body water spaces
Indicate in dotted lines how the volumes of water spaces change:
with excess water intake
V with excess sodium intake
V when significant amount of water is removed from the body
V when significant amount of sodium is removed from the body
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