NUTR 1000 Lecture Notes - Lecture 41: Cerebrospinal Fluid, Chicken Fingers, Prehypertension
3 Nov 2016
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Water compromises for 50-70% of the body: every cell, tissue, and organ contains some water, essential for life. Water balance is controlled by electrolyte concentrations on either side of the cell membrane. Osmosis, movement of water across the cell membrane from area of low solute to high solute. Water follows salt: electrolytes, water flows towards a greater concentration. Fluid and electrolyte balance: causes of imbalance. Many different solutes can be dissolved in water. Takes more energy to heat water than air. Evaporation is perspiration of the skin letting off heat. Because majority of body is water, much energy is needed to change body temp. Dri(cid:374)k water whe(cid:374) you"re thirsty, si(cid:272)k, throughout day. If water intake far exceeds the kidneys processing ability, over hydration and sodium dilution in the blood result. Water intoxication, high intake of water severe dilution of blood and other compartments. 2 ways h20 is used as a lubricant in your body:
