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10 Cards in this Set
- Front
- Back
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Body Fluids are present in 2 main compartments. List them.
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1. 2/3 fluids in Intracellular Fluid (Inside the cells, AKA cytosol)
2. 1/3 fluids in EXTRACELLULAR (outside cells) |
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What is the composition of the EXTRACELLULAR fluid (ECF)?
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80 % of ECF is Interstitial fluid.
20% of ECF is plasma , the liquid portion of bood. |
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What are the sources of Body water gain and loss
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Water Gain:
Ingestion (food and water) Metabolic Water Loss: Kidneys (excreted in urine) Skin (sweat) Lungs (exhalation of water vapor) GI tract (elimination in feces) |
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What hormones REDUCE loss of water in urine? and therefore promotes REABSORPTION of water
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Angiotensin II
Atrial Natriuretic peptide (ANP) Aldosterone |
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What hormones INCREASES loss of water in urine? and therefore promotes SECRETION of water
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Anti Diuretic (ADH)
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List basics of pH
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pH of 7 is neutral and means H+ = OH-
If pH < 7, ACIDIC If pH >7, BASIC (alkaline) |
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What are acid-base imbalances
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Normal systemic arterial blood pH is b/t 7.35 - 7.45.
If blood pH < 7.35, condition is called ACIDOSIS If blood pH >7.45, condition is called ALKALOSIS |
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What are the physiologic responses to acidosis or alkalosis?
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Respiratory compensation assists in conditions related to changes in pH due to metabolic causes.
Renal compensation assists in conditions related to changes in pH due to respiratory causes. |
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Describe respiratory acidosis and alkalosis
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Respiratory acidosis can be caused by enphysema, or disorders of the muscles related to breathing.
Respiratory alkalosis can be caused by oxygen deficiency at high altitude, stroke or severe anxiety |
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Describe metabolic acidosis and alkalosis
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Metabolic acidosis can be caused by actual loss of bicarbonate ions, ketosis, or failure of kidneys to excrete H+.
Metabolic alkalosis can be caused by excessive vomiting, severe hydration |
