01.22 Tuesday

01.22 Tuesday - -Difference in protein concentration...

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Tuesday, January 22 nd 2008 Physiology: the study of physical and chemical factors responsible for the maintenance, origins, and growth of life Levels to Study: 1. Molecular (includes proteins 2. Cellular- 3. Tissues- similar to cells a. Epithelial- skins, liners of things b. Muscle- skeletal, cardiac, smooth c. Connective- muscle to bone d. Nerve- internal communication 4. Organs- complex, discrete structure, 2 or more tissues 5. Systems- 2 or more organs that work for a function Cell function: Total Body Weight/Mass 40% Cellular 60% Fluid 16% Proteins 7% Minerals 15% Fat 40% Intracellular (inside cell) 20% Extracellular (outside cell) 15% interstitial fluid 5% plasma Interstitial Fluid: - outside of vascular fluid - less concentration of protein - 2g/100mL fluid Plasma: - fluid part of the blood - vascular - more proteins (higher concentration) - 7g protein per 100 mL of fluid
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Unformatted text preview: -Difference in protein concentration maintains concentration gradient Both intracellular and extracellular fluid contains 1. Electrolytes: when dissolved in solution, become ionic conductors (cations +, anions -) 2. Non-Electrolytes: do not become ionic conductors in solution. (ex. Glucose, urea) ECF ICF Not swelling: xxx xx xx xx Vasc. Interst. Swelling: xx xx xxx xx Vasc. Interst. Na + 142 mEq/L Na + 110 mEq/L K + 4 mEq/L K + 140 mEq/L Cl-104 mEq/L Cl-4 mEq/L Ca +2 5 mEq/L Ca +2 1 mEq/L writing concentration : *milliequivilants per liter = mEq/L Millimolar (expression of concentration w/o ionic charge) = mM ( ?) Why is potassium in large Qs inside cell? 1. proteins- anions attract cations 2. why not sodium? Membrane is more permeable to K+ 3. sodium/potassium pump a. 2 K+ in per 3 Na+ out b. Moves things against concentration gradient K Q...
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This note was uploaded on 05/22/2008 for the course HES 350 taught by Professor Brubaker during the Spring '08 term at Wake Forest.

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01.22 Tuesday - -Difference in protein concentration...

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