XII 



PHYLUM CHORD ATA 



421 



w 



c ZAc a r.tr \^ 1 



^*-V^sbk /^r/ c " 



S&^M^vert 



FIG. 253. Rana temporaria. The arterial system, with the heart, lungs, kidneys, 

 and left testis, from the ventral aspect, car, carotid artery; car. gl, carotid 

 gland; c. art, conus arteriosus; car. tr, carotid trunk; ccel. mes, cceliaco- 

 mesenteric artery; CM, cutaneous artery; d. ao, dorsal aorta; du, duodenal 

 artery; gs, gastric artery; hp, hepatic artery; il, iliac artery; int, intestinal 

 arteries; kd, kidney; /. an, left auricle; Ig, lingual artery; pul, pulmonary 

 artery; pul. cu. tr, pulmo-cutaneous trunk; r. an, right auricle; rn, renal 

 arteries; spl, splenic artery; sys. tr, systemic trunk; spin, spermatic artery; 

 is, testis; v, ventricle. 



