KINESIOL 1A03 Lecture 19: Chapter 19 notes
21 Sep 2016
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Document Summary
Blood connective tissue composed of a liquid extracellular matrix called blood plasma that dissolves and suspends various cells and cell fragments. Interstitial fluid liquid that bathes body cells and is constantly renewed by the blood. Functions of blood: transportation: transport oxygen, carbon dioxide, nutrients, hormones, heat and wastes, regulation: regulates ph, body temp and water content of cells, protection: protects against blood loss through clotting, and against disease through phagocytic wbc and antibodies. Blood is denser and more viscous (thicker) than water and feels slightly sticky. Temp of blood is 38 degrees, 1 degree higher than oral or rectal body temp. Colour changes with o2: high o2 = bright red. 20% of extracellular fluid, 8% of total body mass. Blood volume is 5-6 liters in males, 4-5l in females; difference is due to body size. Blood plasma or plasma extracellular fluid found in blood vessels; blood minus the formed elements.
