NUTR 1010 Lecture Notes - Lecture 27: Vasodilation, Feces, Halite
30 May 2016
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Document Summary
What is a fluid: molecules are far enough apart that they can slide past each other. Body fluids are made of: water with stuff dissolved in it. Charged particles that are dissolved in water. This electrical charge allows them to do what they do. Carbohydrates, amino acids, water soluble vitamins, minerals, medications. Water insoluble substances are transported with the help of proteins. Cerebrospinal fluid cushions the brain and spinal cord. Amnionic fluid protects a fetus: moisten us! Being made of mostly water helps us keep cool! Sweating and vasodilation: water is involved in chemical reactions. Water is often needed to break 2 molecules apart hydrolysis. Water is often released when 2 molecules are joined together condensation. 65-70% of the water we get comes from beverages. Some also comes from metabolic water: water loss. High concentrations of electrolytes in the blood. Regulation of water losses: when you are dehydrated you pee less! When the blood becomes concentrated antidiuretic hormone is released.
