

r.pi.c. i.v.c. , ' 



r d.ao. 



FlG, 325. — A dissection of the neck and thorax of a rabbit. The heart 

 has been displaced a little to the right, and the pericardium 

 removed. 



ao.a., Aortic arch ; c.c, common carotid arteries ; c.sy., cervical sympathetic nerve ; 

 d.ao,, dorsal aorta; defi., depressor nerve; dr., diaphragm; du.ar., ductus 

 arteriosus ; ex.j., external jugular vein ; f.c, point at which the common carotid 

 divides ; hy., hypoglossal nerve ; i.c.g: , inferior or posterior cervical sympathetic 

 ganglion; inn., innominate artery; i.z'.c, inferior vena cava, lying in medi- 

 astinum ; l.au., left auricle ; /./., left lung ; l.phr., left phrenic nerve ; l.pl.c, 

 left pleural cavity; i.v., left ventricle; lar. y larynx ; a?s., cesopha^us in neck; 

 a?s'., the same in mediastinum ; fi.c, posterior cornu of the hyoid ; fiul.a. y pulmon- 

 ary artery ; pul.v., pulmonary vein ; r.ait,, right auricle ; r.d., ramus descendeos ; 

 r.?., right lung, one pan bulging into mediastinum ; r.lar., recurrent laryngeal 

 nerve ; r.pi.c, right pleural cavity ; r.v., right ventricle ; s.c.%., superior 

 cervical sympathetic ganglion ; s.lar., superior laryngeal branch of vagus ; 

 s.v.c, superior vena cava ; scl., subclavian artery and vein ; smx., submaxillary 

 gland ; t.m., tendon of mandibular muscle ', thy., thyroid gland ; tra., trachea ; 

 v.g., vagus ganglion ; vag., vagus ; W.d., duct of submaxillary gland (Wharton's 

 duct) ; X. y XII., cranial nerves. 



443 



