Effects of dehydration on the urine concentration and salt gland secretion of the green sea turtle
| Autor: | Lewis Greenwald, Henry D. Prange |
|---|---|
| Rok vydání: | 1980 |
| Předmět: |
Osmole
medicine.medical_specialty Salt gland Sodium chemistry.chemical_element General Medicine Urine medicine.disease Chloride chemistry.chemical_compound fluids and secretions Animal science Endocrinology chemistry Internal medicine medicine Urea Composition (visual arts) Dehydration medicine.drug |
| Zdroj: | Comparative Biochemistry and Physiology Part A: Physiology. 66:133-136 |
| ISSN: | 0300-9629 |
| DOI: | 10.1016/0300-9629(80)90369-2 |
| Popis: | 1. 1. Urine of normally hydrated green turtles was isosmotic relative to plasma (320 mOsm/kg). 2. 2. Green turtles kept out of water for 10–20 days produced urine with a mean concentration of 450 mOsm/kg; plasma concentration for these animals was 390 mOsm/kg. 3. 3. Mean urine composition of dehydrated animals was 16 mmol/1 Na + , 38 mmol/l K + , 2.4 mmol/1 Ca 2+ , 74 mmol/1 NH 3 , 5.8 mmol/1 Cl − and 34 mmol/1 urea. The balance of the urine composition presumably consists of unknown organic anions. 4. 4. Salt gland secretions were composed primarily of sodium and chloride ions and had a mean concentration of 1845 mOsm/kg for dehydrated animals; normally hydrated animals had a mean concentration of 768 mOsm/kg. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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