- 14 - BUFO. 



18. Arterial System. Remove one superior vena cava and its branches and turn 

 over the stomach, etc., to the right side of the toad. Dissect carefully along the arteries, 

 beginning from the heart, and mark the following in your diagram : auricles ; ventricle ; 

 truncus arteriosus ; carotid, systemic, and pulmo-cutaneous arches ; lingual artery ; 

 carotid gland ; common carotid artery ; subclavian artery ; pulmonary and cutaneous 

 arteries ; dorsal aorta ; coeliaco-mesenteric, spermatic or ovarian, renal and iliac arteries. 



