There are several main systems of the body: the skeletal, the mus-cular, the nervous, the digestive, the respiratory, the urinary, the endocrine and the reproductive systems. The skeletal system consists of the bones of the body and ligaments and cartilages which join them. The chief function of the skeletal system is structural. The muscular system consists of the skeletal muscles and their as-about' sociated structures. The main function of this system is to move us The nervous system consists of the brain and spinal cord, nerves, ganglia and receptors. It is a complex information system with all the treati means for receiving, processing and communicating in 22 the blood which is pumped through the blood vessels by the heart. Its 15 function is mainly that of transportation system: the nutrients, oxy-gen, special substances which are required by cells' are carried by the blood sid by the d the cellular wastes and sometimes other materials produced by the cells are carried away by the blood stream. 7 ber of associated -The digestive system consists of the alimentary canal and a num- 20 glands, The respiratory system consists of the lungs, the air passages leading to them and associated structures. Its main function is to convey oxygen to the lungs, where it can enter the blood stream and to remove carbon dioxide, which escapes from the blood into the lung 25 spaces. The urinary system consists of the kidneys which produce urine by removing nitrogenous and other wastes' from the blood: the two ureters, which convey the urine away from the kidneys; the urinary bladder, where the urine is stored until it is discharged, and the ure - 30 thra through which the urine is discharged. 6 The endocrine system consists of a number of glands throughout the body which produce regulatory substances called hormones. The endocrine system serves to regulate a large number of activities? Exercise 1. Find in the text English equivalents for the following words and word combinations: 1. несколько основных систем 2. которые их соединяют 3. основная функция 4 со всеми необходимыми средствами 5. переноситься кровотоком 6. ведущих к ним воздухоносных путей 7. где он поступает в кровоток & выводить мочу из почек 9. до тех пор, пока она не выведена 10. вырабатывают вещества - регуляторы