概述 The gas exchange p process between c organization and environment is named respiration 呼吸:机体与外界环境之间的气体交换过程
呼吸:机体与外界环境之间的气体交换过程。 CO2 CO2 O2 概 述 The gas exchange process between organization and environment is named respiration
肺泡表面活性物质 Resource:II alveoli cells T型肺泡上皮 来源:肺泡Ⅱ型细胞分泌 巨嗜细胞 肺泡腔 Complements:DPPC 成分:二棕榈酰卵磷脂 肺泡壁 role: 毛细血营 reduces surface tension 红细胞 作用:降低肺泡表面张力
作用:降低肺泡表面张力 肺泡表面活性物质 Resource: Ⅱ alveoli cells 来源:肺泡Ⅱ型细胞分泌 Complements:DPPC 成分:二棕榈酰卵磷脂 role: reduces surface tension
呼吸肌 Muscles of inspiration diaphragm external intercostal muscles 吸气肌:膈肌和肋间外肌 Muscles of expiration internal intercostal muscles abdominal muscles 呼气肌:肋间内肌和腹肌
Muscles of inspiration : diaphragm external intercostal muscles 吸气肌:膈肌和肋间外肌 Muscles of expiration : internal intercostal muscles abdominal muscles 呼气肌:肋间内肌和腹肌 呼吸肌
肺通气的动力 Inspiration:inspiration muscles 呼气状态 contract thoraxes expand-lungs expand-intrapulmonary pressure decreases -gas enters lungs 吸气:吸气肌收缩一胸廓扩张一肺扩张一 肺内压下降一气体进入肺 隔在呼气运动和吸气运动中的位置 Expiration:diaphragm and external intercostal muscles relax-lung recoils-thorax recoils- intrapulmonary pressure increases-gas is removed. 呼气:膈肌和肋间外肌舒张一肺回缩一胸廓回缩一肺内 压升高一气体被呼出
Inspiration: inspiration muscles contract - thoraxes expand-lungs expand- intrapulmonary pressure decreases –gas enters lungs Expiration: diaphragm and external intercostal muscles relax-lung recoils-thorax recoilsintrapulmonary pressure increases-gas is removed. 吸气:吸气肌收缩-胸廓扩张-肺扩张- 肺内压下降-气体进入肺 呼气:膈肌和肋间外肌舒张-肺回缩-胸廓回缩-肺内 压升高-气体被呼出 肺通气的动力
Intrapleural pressure胸内压 胸膜和胸膜腔 Pleural cavity胸膜腔 胸膜顶纵隔 胸膜脏层 The effect of liquid is (1)Lubrication effect 肋胸膜 在两层胸膜之间起润滑作用 脚膜 (2)The power between liquid 膈胸膜 隔肋宾 纵离 纵 纵隔胸膜 molecules pastes two layers of 胸序颜断面 胸扉横切面 pleura to make them tightly. 使两层胸膜贴附在一起,不易分开
Pleural cavity胸膜腔 Intrapleural pressure胸内压 The effect of liquid is : (1) Lubrication effect 在两层胸膜之间起润滑作用 (2) The power between liquid molecules pastes two layers of pleura to make them tightly. 使两层胸膜贴附在一起,不易分开