《病理生理学》课程教学资源（课件讲稿）水与电解质的正常代谢 Normal metabolism of water and electrolyte、水、钠代谢紊乱 Disturbances of water and sodium balance

(二)水的交换 (Water movement

(二) 水的交换 (Water movement )

1.细胞内外水的运动 (water movement between outside-inside of cell) 水自由通过， 蛋白质、Na+、K +、Ca2+等不能自 由通过

1.细胞内外水的运动 (water movement between outside-inside of cell) 水自由通过, 蛋白质、Na ＋、K ＋、Ca2+等不能自 由通过

2.血管内外水的运动 (water movement between outside-inside of capillary) 蛋白质等大分子 物质受限， 水和电解质自由 交换

2.血管内外水的运动 (water movement between outside-inside of capillary) 蛋白质等大分子 物质受限, 水和电解质自由 交换

3.体内外水的运动 (Water movement between outside-inside of body) Daily intake Daily output (ml/day) (ml/day) Drinking 1300 Urine 1500 Water in food 900 Lungs 400 Water of oxidation 300 Skin 500 Stool 100 Total 2500 Total 2500

Daily intake (ml/day) Daily output (ml/day) Drinking 1300 Urine 1500 Water in food 900 Lungs 400 Water of oxidation 300 Skin 500 Stool 100 Total 2500 Total 2500 3. 体内外水的运动 (Water movement between outside-inside of body)

必每日最低尿量500ml (从尿排代谢废物35g/日 最大浓度68g%) 必呼吸道失水 必皮肤不显性蒸发 生理需水量：1500ml/day

™每日最低尿量500ml ™呼吸道失水 ™皮肤不显性蒸发 生理需水量: 1500ml/day (从尿排代谢废物35g/日 最大浓度6～8g％）