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Unformatted text preview: Ex: respiratory= nose, pharynx, larynx, trachea, bronchi, alveoli.-Also, organs and organ systems Ex: Immune system= white blood cells, lymph vessels, lymph nodes, spleen, thymus, circulatory system. Cells Tissues Organs Organ system Is that all? NO- thats JUST CELLULAR Extracellular- Fluid and Matrix Matrix- Mixture of proteins and minerals Function: Provide structure (eg scaffolding) Transmit information Composition: Fibers- collagen (ropes) and elastin (rubber bands) Nonfiberous protein- carbohydrate based. Fluid- 3 compartments 1) intracellular fluid (w/in cells) 2) Extracellular fluid (btw cells)-actual external environment for cells 3) Plasma- fluid portion of blood-always w/in a blood vessel Plasma< interstitial fluid > intracellular Capillarity wall cell membrane Barriers to exchange problemwhy? B/c theres limited movement exp. Proteins....
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- Spring '07