482 Animal Biology 



DIVISIONS AND BRANCHES OF THE HTTWAN AORTA 



R.& L. CORONARY ARTERIES (to heart wall muscles) 



R. SUBCLAVIAN ^ R. AXILLARY ^ R. BRACHIAL ,^R. RADIAL 



(under clavicle) (armpit) (upper arm)""^:^R.rLNAR 



/ 



\r.coh 



^(in 



irMOMINATE ^yR. EXTERNAL CAROTID ( face, scalp, etc. ) 



*" ~,comoN CAR0TID<;;;_ 



neck) ^-^R. INTERNAL CAROTID (brain, eye, etc . ) 



syL. INTERNAL CAROTID ( brain, eye , etc . ) 

 L. COMMON CPlBOTIIX:^ 



^^L. EXTERNAL CAROTID ( face , scalp, etc . ) 



^>rL. RADIAL (thumb side,f©rearm) 



L. SUBCLAVIAN >L. AXILLARY > L. BRACHIAL CIlTl^L.nLNAR 



INTERCOSTALS (9 pr, to intercostal muscles , etc . ) 



BRONCHIALS (lung tissue, etc.) 



ESOPHAGEALS( 4-5 pr . to esophagus) 



SUPERIOR PHRENIC (diaphragm) 



INFERIOR PHRENIC (diaphragm and abdominal v;ells) 



^^.^^CASTRIC (stomach) 

 HEPATIC:— —>GASTP0rU0DENAL ( stomach, duodenum, pancreas) 

 ( 11 ver)^"-^ CYSTIC (gall bladder) 



CELIAC •_ 



'splenic ( spleen, stomach, pane re as ) 



L. GASTRIC ( stomach, esophagus, liver) 



SUPERIOR MESENTERIC (small intestine , cecum, ascending & descending colon) 



LUMBARS (4 pr . to abdominal walls) 



RENALS (1 pr.tc kidneys) 



SPEPKATIC or OVARIAN (1 pr. to gonads) 



INFERIOR MESENTERIC (to descending colon, rectum, etc . ) 



.^.HYPOGASTRIC (pelvic viscera, bladder, buttocks , etc. ) 



p . comoN 



ILIAC "~^R. EXTERNAL ^^R. ANTERIOR TIBIAL 



ILIAC ^R. FEMORAL ^R . POPLITEAL-v^^ 



(thigh) (under knee )^^R. POSTERIOR TIBIAL 



=,L« HYPOGASTRIC 

 L.COMWON 



ILIAC '-^L. EXTERNAL JfL. ANTERIOR TIBIAL 



ILIAC ^ L. FEMORAL >L. POPLITEAL 



^L. POSTERIOR TIBIAL 



Fig. 241. — Divisions and branches of the human aorta (artery) which arises 

 from the left ventricle of the heart. Most of the more important branches are 

 given somewhat in the order of their origin. The coronary arteries arise from the 

 ascending part of the aorta; the innominate, left common carotid and left sub- 

 clavian from the aortic arch; the next four from the thoracic aorta; the last 

 group from the abdominal aorta. R, right; L, left. Also listed are the regions 

 in which the arteries travel or the tissues and organs to which they supply blood. 



