(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 旬由通过
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)
令每日最低尿量500ml (从尿排代谢废物358/日 最大浓度6~88%) 呼吸道失水 心皮肤不显性蒸发 生狸需水量:1500 ml/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％）