اناٹومی مطالعاتی نوٹ · Thorax
Arch of aorta
The continuation of the ascending aorta in the superior mediastinum. It arches backward and to the left over the root of the left lung and becomes the descending aorta at the level of the sternal angle.
اہم نکات
- Begins and ends at the sternal angle (T4/5).
- Branches: brachiocephalic, left common carotid, left subclavian.
- Left recurrent laryngeal hooks under it (ligamentum arteriosum).
- Coarctation → weak femoral pulses + rib notching.
- Arch = aortic sac + left horn + left 4th arch artery.
- Aortic bodies: chemoreceptors.
- Elastic artery: 40–70 fenestrated elastic membranes in the media.
اٹلس میں مکمل نوٹ میں یہ بھی شامل ہے
مقام · Relations · Branches · Histology · Development · طبی اہمیت
مفت سائن اِن کریں تاکہ اسے 3D ماڈل پر دیکھیں، مکمل نوٹ پڑھیں اور اس پر سوالات کی مشق کریں۔
ماخذ
- Snell’s Clinical Anatomy by Regions, 10th ed., ch. 5, PDF pp. 644, 646
- Inderbir Singh’s Human Embryology, ch. 15, PDF pp. 249–250, 252–253
- BRS Cell Biology & Histology, 7th ed., ch. 11, PDF pp. 197–200, 206
thorax سے مزید
- Ascending aorta
- Azygos vein
- Brachiocephalic artery
- Brachiocephalic veins
- Bronchopulmonary segments
- Coronary sinus and cardiac veins
- Costal cartilages
- Descending thoracic aorta
- Diaphragm
- Esophagus
- First rib
- Heart
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