思乡病 发表于 2025-3-23 10:47:17
Circulation,The circulation forms the body’s transport system which by pumping blood puts every part of the body in communication with every other part. First it is important to have an outline of the structure of the system.我没有强迫 发表于 2025-3-23 13:57:40
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The kidneys and urinary tract,The main functions of the kidneys are the regulation of the amount of water and dissolved ions in the body, the excretion of waste matter and the manufacture of erythropoietin, the hormone which regulates red cell synthesis (chapter 4).Minuet 发表于 2025-3-23 23:33:51
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Nándor Ács,Ferenc Bánhidy,Andrew E. Czeizelhe body rises, so the proportion of body weight made up of water falls. Females are almost always rather fatter than males and so in a normal female 50–55 per cent of the body weight consists of water. In an extremely obese person irrespective of sex, the water content may fall to 40 per cent of the惊惶 发表于 2025-3-24 13:00:33
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