290 



COMPARATIVE ANATOMY 



V 



FIG. 233. THE ARTERIAL SYSTEM OF Emys europcca. 



7V, trachea ; JBr, Br, the two bronchi ; m, stomach ; d, d, small intestine ; e, large 

 intestine ; Ap, pulmonary artery ; Cac, common carotids ; Tr, Oe, tracheal 

 and cesophageal branches ; Sc, subclavian artery ; Per, vertebral artery ; RA, 

 roots of the aorta ; Ao, dorsal aorta ; Co, Co 1 , and Me, cceliaco-mesenteric artery, 

 which here arises as a bundle of separate vessels ; UG, urinogenital arteries ; Cr, 

 crural artery ; E, epigastric artery ; H, hypogastric artery ; Is, sciatic artery ; 

 MB, rectal arteries ; C, caudal aorta. 



