三国大时 COLLEGE OF BASIC MEDICAL SCIENCES 3.主动脉弓 Aortic arch THIRD MILITARY MEDICAL UNIVERSITY 主动脉位于胸骨角平面以上 的一段 弯曲向左后方,弓状跨过左 主支气管和肺动脉干 分支(从右至左) 左A 头臂干一发出右颈总动脉 和右锁骨下动脉 左颈总动脉 a左锁骨下动脉 6
THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES 16 ◼ 主动脉位于胸骨角平面以上 的一段 ◼ 弯曲向左后方，弓状跨过左 主支气管和肺动脉干 ◼ 分支 (从右至左 ) ❑ 头臂干－发出右颈总动脉 和右锁骨下动脉 ❑ 左颈总动脉 ❑ 左锁骨下动脉 3.主动脉弓 Aortic arch
三国大时 4.胸主动脉 Thoracic aorta COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY 主要分支 支气管动脉 壁支 9对肋间后动脉 1对肋下动脉 食管动脉 膈上动脉 脏支 支气管动脉 食管动脉 心包支 肋间后动脉 17
THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES 17 4.胸主动脉 Thoracic aorta ◼ 主要分支 ❑ 壁支 ◼ 9对肋间后动脉 ◼ 1对肋下动脉 ◼ 膈上动脉 ❑ 脏支 ◼ 支气管动脉 ◼ 食管动脉 ◼ 心包支 支气管动脉 食管动脉 肋间后动脉
主动脉各部的分支分布◇兹 ES COLLEGE OF BASIC MEDICAL SCIENCES IIRD MILITARY MEDICAL UNIVERSITY 升主动脉→左、右冠状动脉→ 左锁骨下动脉 左颈总动脉 主动脉弓 右颈总动脉}头颈 部 头臂干 上肢等 右锁骨下动脉 胸主动脉→壁支、脏支→胸壁、胸腔脏器 腹主动脉→壁支、脏支→腹后壁、腹腔脏器 髂内动脉→盆部、会阴 左、右髂总动脉 髂外动脉→下肢等 18
THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES 18 主动脉各部的分支分布 升主动脉→左、右冠状动脉→心 左锁骨下动脉 左颈总动脉 主动脉弓 右颈总动脉 头臂干 右锁骨下动脉 胸主动脉→ 壁支、脏支→胸壁、胸腔脏器 腹主动脉→壁支、脏支→腹后壁、腹腔脏器 髂内动脉→盆部、会阴 左、右髂总动脉 髂外动脉→下肢等 上 肢 等 头颈部
三 5胸廓内动脉 COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY 起自锁骨下动脉 分支:肌膈动脉、腹壁上动脉 superior thoracic artery subclavian arte erior intercostal ane internal thoracic artery collateral branch of osteria intercostal artery anterior perforating artery musc anery 19
THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES 19 ◼ 起自锁骨下动脉 ◼ 分支：肌膈动脉、腹壁上动脉 5.胸廓内动脉
三国大时 COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY 肋间后动脉 胸主动脉 胸廓内动脉肋同前支 20
THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES THIRD MILITARY MEDICAL UNIVERSITY COLLEGE OF BASIC MEDICAL SCIENCES 20 胸主动脉 肋间后动脉 胸廓内动脉 肋间前支