CIRCULATORY SYSTEM OF THE PIG 
~] 
ivy) 
(o°6) 
Six pairs of lumbar arteries arise from the aorta. The seventh comes from 
the middle sacral. 
The terminal branches of the aorta resemble those of the ox. 
The arteries of the shoulder, arm, and forearm resemble in general those of 
the ox. 
The brachial artery is continued over the medial surface of the elbow by the 
median artery. The latter divides near the middle of the forearm into radial and 
ulnar arteries. 
The radial artery is the smailer of the two terminal branches of the median. 
It descends aiong the medial border of the radius and divides at the proximal end 
Fie. 608.— ARTERIES OF DistaL Part or RicHT FoRE 
Fie. 607,—ArTERIES OF DistaL Part oF RicHtT FoRE 
Limp oF Pia; Vorar View. 
Lims or Pic; Dorsau VIEW. 
artery; b, g, Ulnar artery; h, superficial branch of radial 
dorsal artery; 7, collateral ulnar arteryé j, volar interosseous ar- 
tery; h, deep branch of radial artery; &, deep volar meta- 
carpal arteries; /, superficial volar metacarpal arteries; 
m, volar common digital artery; n, volar proper digital 
a, Terminal part of volar interosseous 
dorsal interosseous artery; c, rete carpi dorsale; d, 
metacarpal arteries; e, dorsal common digital arteries; 
f, dorsal proper digital arteries. 
arteries. 
of the metacarpus into two branches. The superficial branch descends in the space 
between the second and third metacarpal bones and unites with the ulnar artery 
or with the lateral superficial volar metacarpal artery to form the superficial volar 
arch. The deep branch joins the volar interosseous artery at the proximal end of 
the metacarpus to form the deep volar arch. There is also a communicating branch 
between the radial and ulnar arteries at the carpus. 
The ulnar artery descends along the medial side of the deep digital flexor and 
connects with the superficial branch of the radial artery to form the superficial 
volar arch. 
