KIN 2500 Chapter : Chp 12 Notes
15 Mar 2019
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The cardiovascular system consists of three interrelated components: blood, the heart, and blood vessels: blood- liquid connective tissue that consists of cells surrounded by an extracellular matrix (plasma) Interstitial fluid- the watery fluid that bathes body cells and is constantly renewed by the blood. Regulates ph through buffers (chemicals that convert strong acids or bases into weak ones); body temp; blood osmotic pressure: protection- blood clots which protects against its excessive loss from the cardiovascular system after an injury. Physical characteristics of blood: blood is thicker (viscous) than water (flows more slowly than water, temp: 98. 6/100 f, 38c, slightly above body temp, color varies depending where its taken from, elbow- purple/dark red. Immunoglobulins (antibodies)- blood cells develop into this, produce globulins. Produced during certain immune responses: antigens- foreign substances such as bacteria and viruses, stimulate production of antibodies, red blood cells (rbcs)- 44-45% of blood sample.
