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+### 身体能量大致流程
+```plantuml
+@startuml
+skinparam componentStyle rectangle
+
+usecase "心脏" as xin#red;text:white
+usecase "肺部" as fei#purple;text:white
+usecase "肝脏\n..\n肝糖原" as gan#lightgreen
+rectangle "口鼻" as kou
+rectangle "遍布全身的组织" as zuzhi1 {
+rectangle "线粒体" as xian1{
+    usecase "基质" as jizhi
+    circle "氢" as qing2
+    circle "CO2" as co2
+    circle "O2" as yang
+    circle "H2o" as h2o
+}
+rectangle "肌纤维" as ji1
+usecase "肌糖元" as jtang
+usecase "乳酸" as rsuan
+database "脂肪" as fat1
+usecase "甘油" as you
+usecase "脂肪酸" as suan
+usecase "脂酰CoA" as CoA
+circle "葡萄糖" as tang
+usecase "丙酮酸" as btong
+usecase "氢" as qing
+}
+usecase "遍布全身的组织" as zhuzhi2
+
+kou --> fei:O2
+kou <-- fei:CO2
+fei -> xin:氧\n静脉
+fei <-- xin:CO2\n动脉
+xin <-left- gan:糖
+xin <-- zuzhi1:静脉\nCO2
+xin --> zuzhi1:动脉\nO2糖
+ji1 <-up- xian1:供能
+tang --> btong
+tang --> qing
+btong -->jizhi
+jizhi --> qing2
+jizhi --> co2
+jizhi <-left- yang
+you --> gan:随血液
+yang -left-> h2o
+xin -right-> zhuzhi2:O2&糖
+xin <-right- zhuzhi2:CO2
+jtang -left-> rsuan
+rsuan --> gan:随血液
+jtang *--* ji1
+suan -- gan:随血液
+h2o <-up- qing
+h2o <-- qing2
+fat1 --> suan
+fat1 --> you
+suan --> CoA
+CoA --> jizhi:肉毒碱转运
+
+@enduml
+```
+
+70公斤成年人体内肝糖原和肌糖原的平均含量分别为90克和335克。
+葡萄糖在真核细胞内氧化分解的即有氧呼吸过程，具体包括三个步骤：第一步,在细胞质基质中葡萄糖分解生成丙酮酸和氢,生成少量的能量.第二步,丙酮酸和氢进入线粒体,在线粒体基质中丙酮酸彻底分解生二氧化碳和氢,生成少量能量,这一步有水参与.第三步,在线粒体内膜上,前两个阶段产生的氢与氧气结合,生成水,同时产生大量的能量。