Fig. 133. Dissection showing the vessels and nerves in the neck and upper part of 

 the chest in a dog. (Modified from Schmiedeberg.) 1. Rt. inferior (recurrent) laryngeal 

 nerve. 2. Vago-sympathetic nerve. 3. Phrenic nerve. 4. Vertebral nerve. 5. Rt. in- 

 ferior (recurrent) laryngeal nerve. 6. Inferior cervical ganglion. 7. Cervical sympa- 

 thetic nerve. 8. First thoracic ganglion. 9. Superior cardiac nerve. 10. Inferior 

 cardiac nerve. 11. Vagus trunk. 12. External jugular vein. 13. Thyroid gland. 14. 

 Internal jugular vein. 15. Subclavian artery. 16. Carotid artery. 17. Brachial plexus. 



