144 



HANDBOOK OF ANATOMY 



FIG. 56. THE AORTA IN THE THORAX, AND THE PRINCIPAL ARTERIES OF 

 THE HEAD AND NECK. 



1. Arch of the Aorta 



2. Aortic Isthmus 



3. Aortic Spindle 



4. Descending Aorta 



5. Coronary Arteries (from 



Ascending Aorta) 



6. Innominate Artery 



7. Left Common Carotid 



8. Left Subclavian 



9. Right Common Carotid 



10. Right Suhclavian 

 n. External Carotid 



12. Internal Carotid 



13. Internal Maxillary 



14. Superficial Temporal 



15. Vertebral 



16. Internal Mammary 



17. Thyroid Axis 



1 8. Inferior Thyroid 



19. Transverse Cervical 



20. Suprascapular 



21. Superior Thyroid 



22. Lingual 



23. Facial 



24. Occipital 



25. Posterior Auricular 



26. Ascending Pharyngeal 



27. Transverse Facial 



28. Aortic Intercostals 



gland and runs straight up, terminating about 2 inches above 

 the zygoma by dividing into branches. It supplies the scalp 

 and surrounding structures. 



