INTERMETACARPAL JOINTS—-METACARPO-PHALANGEAL -JOINTS 
the distal bones with the metacarpus. 
ulnar carpal bone with the meta- 
carpus. 
The dorsal, volar, and interos- 
seous carpal ligaments vary with the 
number of carpal bones present in 
the different species. 
In the dog there are six dorsal 
and six volar ligaments. The inter- 
osseous ligaments are not inter- 
ordinal. The accessory carpal bone 
is attached by ligaments to the ulna, 
“the radio-intermediate, and the 
third, fourth, and fifth metacarpal 
bones. The distal carpal bones are 
attached to the metacarpal bones by 
dorsal and volar ligaments. 
INTERMETACARPAL JOINTS 
In the ox the small (fifth) meta- 
carpal bone articulates with the large 
metacarpal, but not with the carpus. 
The joint cavity is connected with 
that of the carpo-metacarpal sac. 
The proximal end of the small meta- 
carpal bone is attached by a ligament 
to the fourth carpal, and another 
band extends from its distal part 
to the side of the large metacarpal. 
There is also an interosseous liga- 
ment, which is permanent and allows 
a small amount of movement. 
The chief metacarpal bones of 
the pig, and the second to the fifth of 
the dog, articulate with each other 
at their proximal ends, and are con- 
nected by interosseous ligaments, 
which do not, however, unite them 
closely, as in the horse. There are 
feeble dorsal and volar ligaments 
(Ligg. basium) which unite the 
proximal ends of the metacarpal 
bones in the dog. 
METACARPO-PHALANGEAL JOINTS 
Ox.—There are two joints, one 
for each digit. The volar parts of 
the two joint capsules communicate. 
The two interdigital collateral liga- 
ments (Ligg. collateralia interdigi- 
talia) result from the bifurcation of a 
247 
A strong oblique ligarment connects the 
Fig. 257.—Drstat Part or Line or Ox, SHowrve LIGAMENTS 
One Dicit anD CORRESPONDING ARTICU- 
LAR Part oF MeracaRPAL BONE ARE REMOVED. 
AND TENDONS. 
a, Suspensory ligament; a’, branch of a to superficial fiexor 
tendon; a’, a’”’, lateral and central branches of a; 6b, deep flexor 
tendon: }’, branch of 6 to digit removed; c, c, superficial flexor 
tendon; d, d’, intersesamoid ligament (cut); e, interdigital col- 
lateral ligament of fetlock joint; f, tendon of common extensor; 
g, proximal interdigital ligament; A, digital annular ligament; 
i, posterior annular ligament of fetlock; *, collateral ligament 
of pastern joint; /, distal interdigital ligament; m, cruciate inter- 
digital ligament (cut); m’, m’’, attachments of m to second pha- 
lanx and distal sesamoid bone; n, suspensory ligament of distal 
sesamoid; o, dorsal elastic ligament; p, lateral volar ligament 
of pastern joint; 1, metacarpus, sawn off at 1’; 2, first phalanx; 
3, second phalanx; 4, third phalanx. (Ellenberger-Baum, Anat. 
d. Haustiere.) 
band which arises in the furrow between the divisions of the distal end of the large 
metacarpal bone; they spread out and end on the proximal ends of the first pha- 
