arch of aorta

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Rishi Pokhrel

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arch of aorta

  1. 1. Arch of Aorta download these slides free of cost from www.slideshare.com
  2. 2. - Arch of Aorta is continuation of asc aorta at sternal angle - Begins and terminates at sternal angle - Connects ascg & descg aorta - Arches over root of left lung - Situated in sup mediastinum behind manubrium - Summit of arch reaches level of middle of manubrium Introduction
  3. 3. Course - Begins as continuation of ascg aorta behind Rt 2nd chondrosternal joint - Passes up, back and left infront of bifurcation of trachea - finally turns backwards & downwards behind the left bronchus n continues as descg aorta at lower border of T4 V
  4. 4. Course
  5. 5. Course
  6. 6. Azygos vein TS at T4 V level CS- superior mediastinum
  7. 7. Relations
  8. 8. Anterior & to left – Lt pleura & lung Lt phrenic N left cardiac nerves (Inf cervical cardiac br of Xth N Sup cervical cardiac br Symp trunk Lt vagus Lt Rec laryngeal N hooks upwards below arch of aorta Lt sup IC vein
  9. 9. Posterior & to right – Trachea with deep cardiac plexus Oesophagus Lt Rec laryngeal nerve Thoracic duct Vertebral column
  10. 10. Inferior • Left bronchus • Bifurcation of pul trunk • Lig arteriosum • Left recurrent laryngeal nerve • Sup cardiac plexus
  11. 11. Superior • Brachiocephalic trunk • Lt commom carotid A • Lt subclavian A • Lt brachiocephalic vein
  12. 12. Branches - Rt brachiocephalic trunk – div into Rt CC & Rt SC artery - Lt common carotid artery - Lt subclavian artery - Occasionally Thyroidea Ima A & Vertebral A
  13. 13. Brachiocephalic trunk Lt Common Carotid Lt Subclavian Branches Arch of Aorta
  14. 14. Development
  15. 15. Developmental anomalies
  16. 16. Applied Anatomy
  17. 17. Aortic knuckle
  18. 18. Coarctation of aorta localised narrowing of aorta distal to Left Subclavian origin 1.Preductal 2.Postductal 3.Juxtraductal collateral circulation b/w SC & Descg Thoracic aorta • Notching of ribs • Pulsating scapula
  19. 19. Aortic aneurysm – localised dilatation of aorta
  20. 20. Patent ductus arteriosus

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