Science Of Life

Author(s): U S Dugar
Publisher: U S Dugar

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Each cell of the body is a complete living entity with its own metabolism. It needs constant supply of oxygen and sufficient nourishment. Oxygenation of cells is most essential for life as without it they could not move, build and turn food into energy via respiration in the form of the metabolism of energyrich molecules such as glucose for life activities. Every cell in the body is surrounded by lymph. Dead cells, blood proteins, and other toxic material must be removed by the lymphatic system. The lymph collected throughout the body drains into the blood through 2 ducts located at the base of the neck, ultimately ending up in the 'thoracic duct. This duct empties the lymph into the veins, where it becomes part of the blood plasma. From there, the lymph returns to the liver for metabolisation, and finally to the kidney for filtering. In addition to filtering out toxic materials, the lymph nodes also produce substances which fight off invading bacteria and viruses and destroy abnormal cells which developed within the body, such as cancer cells. The lymphatic system is an essential part of the immune system. Breathing drives this into action.
The lungs are important eliminator of body wastages eliminating 70% of metabolic waste? The remainder should be eliminated through defecation 3%, urination 8%, and perspiration 19%. An average person reaches peak respiratory function and lung capacity in his mid-20, the period of physical growth. Between youth and old age the lungs begin to lose respiratory capacity between 9 and 25% for every decade of life. 45% of lung volume is gone by age 70. As age proceeds,
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