KINS 1224 Chapter Notes - Chapter 24: Angiotensin, Osmotic Concentration, Posterior Pituitary
19 Apr 2016
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Young adult men have average 55-60% water, women have a little less because they have more adipose tissue which is nearly free of water. Obese and elderly people are as little as 45% water weight. The total body water content of a 150lb young male is about 40l. Body water is disturbed among certain fluid compartments, areas separated by selectively permeable membranes and differing from each other in check composition. 2% transcellular fluid: includes fluid in the digestive, urinary, and respiratory tracts, aqueous humors of the eye bile. Fluid is exchanged by capillary walls and plasma membranes. Water moves from osmosis from the digestive tract to the bloodstream and by capillary filtration from the blood to the tissue fluid. Since water movies so easily through plasma membrane osmotic gradients between the icf and. Osmosis is determined by the concentration of solutes in each compartment.
