Section 2 Pulmonary Ventilation
Section 2 Pulmonary Ventilation
power of pulmonary ventilation 肺通气的动力 respiratory movement Thoracic(胸廓)expansion and contraction caused by respiratory muscles are named respiratory movement.(inspiration,expiration) Muscles of inspiration diaphragm and external intercostal muscles Muscles of expiration internal intercostal muscles and abdominal muscles
respiratory movement Thoracic(胸廓) expansion and contraction caused by respiratory muscles are named respiratory movement. (inspiration, expiration) power of pulmonary ventilation 肺通气的动力 Muscles of inspiration : diaphragm and external intercostal muscles Muscles of expiration : internal intercostal muscles and abdominal muscles
power of pulmonary ventilation Inspiration:inspiration muscles 呼气状态 contract thoraxes expand-lungs expand-intrapulmonary pressure decreases -gas enters lungs 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
power of pulmonary ventilation 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
patterns呼吸类型 thoracic breathing(胸式呼吸) 主要靠肋间外肌的收缩，胸壁起伏明显。 abdominal breathing(腹式呼吸) 主要靠隔肌的收缩，腹壁起伏明显。 胸腹式呼吸 正常呼吸 eupnoea平静呼吸 吸气主动过程 呼气：被动过程 labored breathing用力呼吸 吸气：主动过程 呼气：主动过程
thoracic breathing（胸式呼吸） 主要靠肋间外肌的收缩,胸壁起伏明显。 abdominal breathing（腹式呼吸） 主要靠隔肌的收缩,腹壁起伏明显。 胸腹式呼吸 正常呼吸 eupnoea平静呼吸 吸气：主动过程 呼气：被动过程 labored breathing用力呼吸 吸气：主动过程 呼气：主动过程 patterns呼吸类型
intrapulmonary pressure 肺内压 Intrapulmonary pressure is the pressure in pulmonary alveoli. 肺内压是指肺泡内的压力 •吸气初：肺内压<大气压 吸气开始 吸气末：肺内压=大气压 吸气停止 呼气初：肺内压>大气压 呼气开始 呼气末：肺内压=大气压 呼气停止
•吸气初：肺内压 < 大气压 吸气开始 •吸气末：肺内压 = 大气压 吸气停止 •呼气初：肺内压 > 大气压 呼气开始 •呼气末：肺内压 = 大气压 呼气停止 intrapulmonary pressure 肺内压 Intrapulmonary pressure is the pressure in pulmonary alveoli. 肺内压是指肺泡内的压力