2I 4 



HEAD AND NECK 



PLATE VII 



FIG. 7 8. Dissection of the Head and Neck of the same subject 

 as that shown in Fig. 15, but the greater part of the parotid 

 gland, the greater part of the sterno-mastoid muscle, the 

 greater part of the external jugular vein, portions of other 

 veins, portions of the sterno-hyoid and sterno-thyreoid 

 muscles, and the submaxillary gland have been removed 

 to display deeper structures. 



1. Supra-orbital artery and nerve. 



2. Frontal artery and vein. 



3. Lateral nasal branch of external 



maxillary artery. 



4. Superior labial branch of ex- 



ternal maxillary artery. 



5. Inferior labial branch of ex- 



ternal maxillary artery. 



6. External maxillary artery. 



7. External maxillary artery. 



8. Deep part of submaxillary gland. 



9. Lingual artery. 



10. Submental branch of external 



maxillary artery. 



11. Mylo-hyoid muscle. 



12. Nerve to thyreo-hyoid muscle. 



13. Internal laryngeal nerve. 



14. Common facial vein. 



15. Superior thyreoid vessels. 



16. Common carotid artery and de- 



scendens hypoglossi nerve. 



17. Sterno-hyoid muscle. 



18. Omo - hyoid muscle (anterior 



belly). 



19. Sterno-thyreoid muscle. 



20. Thyreoid gland. 



21. Middle thyreoid vein. 



22. Trachea. 



23. Inferior thyreoid vein. 



24. Sterno-thyreoid muscle. 



25. Sterno-hyoid muscle. 



26. Subclavius muscle with nerve. 



27. Cephalic vein. 



28. Lateral anterior thoracic nerve. 



29. Acromial branch or thoraco- 



acromial artery. 



30. Transverse scapular vessels. 



3 1 . First serration of serratus anterior 



muscle. 



32. Subclavian artery. 



33. Transverse cervical artery. 



34. Upper root of long thoracic 



nerve. 



35. Trapezius. 



36. Scalenus anterior. 



37. Internal jugular vein. 



38. Communicans hypoglossi nerve. 



39. Ascending branch of transverse 



cervical artery. 



40. Internal carotid artery. 



41. External carotid artery. 



42. Hypoglossal nerve. 



43. Occipital artery and sterno- 



mastoid branch. 



44. Lesser occipital nerve. 



45. Digastric and stylo-hyoid muscles. 



46. Third occipital nerve. 



47. Greater occipital nerve and 



occipital artery. 



48. Posterior auricular artery and 



vein. 



49. Superficial temporal vessels and 



auriculo-temporal nerve. 



