39 



PLATE XX. 



THE FxXiOGr — continued. 



Circulatory System — 

 Fig. 1. Aetekies — 



^ Lingual artery (L. lingua, the tongue) to tongue. 

 Caeot'id Trunk or Ax- ) Carotid gland. 



TERioK Acetic Arch ) Carotid artery to head by way of ear (Gr. htm, the head ; oiik, the 

 { car). 



/ Vertebral artery to vertebral column. 

 Sub-clavian artery (L. siih, under; clavicula, collar-bone) to forelimb. 

 (Esophageal artery to gullet. 



Coeliac artery f Hepatic to Uver. 



(Gr. Icoilia, the belly) \ Gastric to stomach, 

 f Splenic to spleen. 

 ( Hoemal to intestine (not named). 

 Dorsal aorta, giving off branches to various organs. 

 Common iliac arteries formed by the forking of the aorta in the 

 neighbourhood of the iUum, and giving of!' hypogastric branches 

 to the bladder and lower parts of the belly. 

 Femoral and sciatic arteries, a continuation of the common iliac 

 down the thigh. 



Fig. 



Aortic Trunk or 

 Middle Aoetio 

 Arch . . . 



Mesenteric artery 



pulmo-cutaneous 

 Trunk or Pos- 

 terior Aortic 

 Arch \ 



Veins — 



1 Pul'monary artery to lung (L. pul7)io, a lung). 



) Cutaneous artery to the skin of the back (L. cutis, the skin). 



Superior Vena Cava, 

 formed by . . . 



Inferior Vena 

 formed by 



Cava, 



/t • , r 1 1 f Internal ingular. 



1 Innominate, formed by <^ ^, , •' ° 



I { bub-scapular. 



< „ , , . „ 1 1 f Musculo-cutaneous. 

 i Sub-clavian, formed by .' , . , 



j ■' \ Brachial. 



^ External jugular. 



r Eeual. 



-' Genital (not shown). 



t Hepat'ic. 



Common Iliac or Eenal Afferent Vein formed by the dorsal ends of the pelvic vein, which is 



formed by the femoral and sciatic veins. Dorso-lumbar vein opens into common iliac. 

 Anterior Abdominal Vein formed by the ventral ends of the pelvic vein. 



r Gastric. 

 Portal Vein or Vena Portjs (L. the vein of the gate — of the liver) formed by < Lieno-intestinal (L. 



V lienis, the spleen). 

 Common Pulmonaey Vein formed by the veins of the right and left lungs. 



DIAGRAJI I. The Heart, with the principal vessels distributing and returning the blood— 



'Sinus vcnosus (L. venous sinus) receiving superior and inferior 

 venae cavie. 



Heart ^ Pught auricle with sinus venosus opening into it. 



j Left auricle receiving common pulmonary vein. 

 Lventricle leading into truncus arteriosus (L. arterial trunk). 



