BIOL1003 Lecture 11: Lecture 11 BIOL - Blood
9 Aug 2018
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Document Summary
Type of connective tissue with cells suspended in a fluid matrix as part of the cardiovascular system. 5-6l in males and 4-5l in females. Decreases in exercise due to water loss through sweating: functions of blood. Transport material around the body: o2 from the lungs to the tissues where it can be used to synthesize atp and mitochondria, products of digestion, hormones, waste products, co2. Homeostasis: ph of the body (constant ph7. 4) 55% is plasma clear fluid slight yellow in colour. Red blood cells (7. 5-10 micrometres so they can squeeze through the capillaries (they deform in shape)). Maintains osmotic pressure within capillaries so excess fluid is not lost to tissues. Acts as carriers transporting material bound to them e. g. iron carried in blood bound to albumin carrier transferrin: globulins. Defence and transport immunoglobulins are produced by defence cells of blood. Other globulins transport material such as fats and vitamins: fibrinogen.
