【正文】
2.尖后段 3.前段 4.上舌段 5.下舌段 6.尖(上)段 7.+8.前內(nèi)底段 9.外側(cè)底段 10.后底段 上葉 中葉 下葉 上葉 下葉 外側(cè)底段 外側(cè)底段 ☆ Vessels OF lung Pulmonary A Pulmonary V ★ Diaphragm Sternal part Costal part Lumbar part Central tendon Lumbocostal triangle Sternocostal triangle ☆ Shape Aortic hiatus Esophageal hiatus Vena cava foramen ☆ Openings in the diaphragm T8 T10 T12 ? Contraction: the dome moving downward, increases the volume of thoracic cavity which results in inspiration, at the same time the intraabdominal pressure is increased assists in defecation, vomiting or child birth. ? Relaxation: the dome returns to the former position, reduces the volume to the thoracic cavity, resulting in expiration. ☆ Action: