ES 207 Chapter Notes - Chapter 11: Heparin, Haematopoiesis, Vitamin K
22 Dec 2016
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Oxygen enters blood in lungs, co2 expelled from blood through the lungs. Transports ingested nutrients, ions, and water from digestive system to cells. Substances move in the blood to different areas to be modified. Example: precursor for vitamin d is produced in skin ---> transported to live by blood ---> then to kidneys to be processed to active vitamin d ---> then transferred to small intestine (promotes uptake of calcium) Example: lactic acid produced by skeletal muscles during anaerobic respiration ---> carries lactic acid to liver ---> converted to glucose. Carries many hormones and enzymes that regulate body processes. Buffers found in blood (keep ph 7. 35 - 7. 45) Osmotic composition of blood critical for maintaining normal fluid and ion balance. Certain cells and chemicals in blood make an important part of immune system. Blood vessels are damaged ---> blood clotting protects against blood loss. Blood consists of liquid matrix containing cells and cell fragments.
