39 



PLATE XX. 



THE FKOG- 



continued. 



ClECDLATORY SYSTEM 



Fio. 1. ARTERIES 



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

 CAROT'ID TRUNK OR AN- J Carotid gland. 



TERIOR AORTIC ARCH ) Carotid artery to head by way of ear (Gr. kara, the head ; oils, the 

 (. ear). 



/ Vertebral artery to vertebral column. 



Sub-clavian artery (L. sub, under; clavicula, collar-bone) to foreliinb. 

 CEsophageal artery to gullet. 



Coeliac artery ( Hepatic to liver. 

 (Gr. koilia, the belly) ( Gastric to stomach. 

 ( Splenic to spleen. 

 ( Haemal 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 ilium, and giving off hypogastric branches 

 to the bladder and lower parts of the belly. 



Femoral and sciatic arteries, a continuation of the common iliac 

 down the thigh. 



AORTIC TRUNK OR 

 MIDDLE AORTIC 

 ARCH 



Mesenteric artery 



PULMO-CUTANEOUS 

 TRUNK OR POS- 

 TERIOR AORTIC 

 ARCH . . . 

 Fio. 2. VEINS 



J Pul'monary artery to lung (L. pulmo, a lung). 



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



( Innominate, formed by / Internal jugular. 



SUPERIOR VENA CAVA, ) Sub-scapular. 



FORMED BY . . . j Sub-clavian, formed by | 



^ External jugular. 



Musculo-cutaneous. 

 Brachial. 





T -- ( Renal. 



INFERIOR VENA CAVA, I ..,/.. \ 



-; Genital (not shown). 



(. Hepat'ic. 



FORMED BY 



COMMON ILIAC or RENAL 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. 



{Gastric. 

 Lieno-intestinal (L. 

 lienis, the spleen). 

 COMMON PULMONARY VEIN formed by the veins of the right and left lungs. 



DIAGRAM I. THE HEART, with the principal vessels distributing and returning the blood 



C Sinus venosus (L. venous sinus) receiving superior and inferior 

 venae cavae. 



HEART { Right auricle with sinus venosus opening into it 



Left auricle receiving common pulmonary vein. 

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



