BM1042 Lecture 3: Week 3
Document Summary
Describe the components of blood and their functions. Limited life span (120 days), constantly being produced: produced in response to erythropoietin hormone which is released from kidneys, oxygen composition decreases -> stimulation of epo release and increase in. Rbc: biconcave discs, no nucleus - can"t repair themselves. Screen clipping taken: 8/08/2018 11:14 am: white blood cells (leukocytes, 5 types (2 families, granulocytes, neutrophils, eosnophils, basophils, agranulocytes. Immunity and body defences: very few, less than rbcs, can be released in response to an infection quickly, uses blood as transport system, nucleated, produced and stored in bone marrow. Larger than rbcs: platelets, clotting/haemostasis, fragments of other cells, when damage to blood vessel wall -> form plug on breakage to prevent blood loss. Discuss how nutrients and wastes are exchanged between blood and cells. Screen clipping taken: 8/08/2018 11:21 am: right shift. Increase in temp: more o2 delivered to tissues.
