Water-salt metabolism is a set of processes of consumption of water and salts (electrolytes), their absorption, distribution in internal environments and excretion from the body [1] .
Content
- 1 Water-salt metabolism of a person
- 1.1 Water-salt compositions of liquids
- 2 Water-salt metabolism of plants
- 3 Water-salt metabolism of animals
- 4 See also
- 5 notes
- 6 References
Human salt-water metabolism
Water-salt formulations of liquids
The body of an adult consists of 65% of water (60-70% of body weight). The liquid is divided [2] into:
- Intracellular (40-45% of body weight)
- Extracellular, which includes intercellular fluid (16% of body weight), blood plasma (5%) and lymph (2%)
- Transcellular fluid (1-3%) - which includes cerebrospinal and intraocular fluids, as well as fluids of the abdominal cavity , pleura, pericardium , articular bags and gastrointestinal tract .
The distribution of fluid in a person by salt composition:
Salt composition of intracellular, intercellular and vascular spaces :
| substance \ meq / l concentration | molecular mass | intracellular space | intercellular space | vascular space |
|---|---|---|---|---|
| Sodium | 23.0 | 10 | 140 | 142 |
| Potassium | 39.1 | 140 | four | four |
| Calcium | 40.1 | <1 | 5 | 5 |
| Magnesium | 24.3 | fifty | 2 | 2 |
| Chlorine | 35.5 | four | 109 | 102 |
| Bicarbonate | 61 | 10 | 26 | 24 |
| Phosphate PO4 | 96 | 75 | 2 | 2 |
| Protein | 38,4 | 9 | 16 |
In medical practice, vascular and intercellular fluid are often equated.
Salt composition of transcellular fluid :
| biological fluid \ element, concentration in meq / l | sodium | potassium | chlorine | bicarbonate | phosphate | calcium |
|---|---|---|---|---|---|---|
| saliva | 9-53 | 5-40 | 10-75 | 10-20 | 10 | 3 |
| gastric juice pH> 4 | 70-140 | 0.5-40 | 5-100 | 0 | 0 | 0 |
| gastric juice pH <4 | 9-60 | 0.5-40 | 80-155 | 0 | 0 | 0 |
| pancreatic juice | 98-180 | 3-10 | 53-95 | 60-100 | 0 | 0 |
| bile | 73-164 | 3-12 | 50-150 | 30-40 | 0 | 10 |
| small intestine | 100-435 | 2-20 | 60-300 | 20-96 | 0 | 0 |
| cecum | 80 | 21 | 48 | 0 | 0 | 0 |
| ileum | 117-130 | 5 | 39 | 0 | 0 | 0 |
| cerebrospinal fluid | 140 | 3.9 | 127 | 0 | 0 | 0 |
| urine | 150-220 | 38-90 | 36-230 | 0 | 0 | 0 |
| sweat | 9.8-60 | 2-21.8 | 1,7-70,2 | 1.7-5.0 | 0.18-1.29 | 0 |
Water-salt metabolism of plants
Water-salt metabolism of animals
See also
- Osmoregulation
- Osmotic concentration
- Drinking mode
- Overhydration
- Dehydration
Notes
- β http://www.big-soviet.ru/99/16948/Water-saline%20change Archived July 10, 2015 on the Wayback Machine
- β WATER-SALT EXCHANGE - Big Medical Encyclopedia
Links
- Article in the Great Soviet Encyclopedia
- Water-salt exchange - an article from the Brief Medical Encyclopedia, M., "Soviet Encyclopedia", 1989, 2nd ed.
- Water-salt exchange