330 THH HORSE. 
the tendon of the extensor pedis, and behind it mixes with the caleaneo- 
metatarsal ligament. he deep-seated external ligament, much shorter than 
the preceding, is attached superiorly upon the anterior part of the external 
Tic. 22. — ExTERNAL VIEW OF 
THE Hock JOINT. 
A. Tibia. 
b. External malleolus of tibia. 
Cc. Os calcis. 
Db. Large metatarsal bone. 
3. Capsular ligament opened and 
partially removed. 
F. Prominence in head of ex- 
ternal small metatarsal 
bone, sometimes mistaken 
for curb. 
. Astragalus. 
. Cuboid bone. 
Scaphoid bone. 
. Cuneiform bone. 
2. Calcaneo-tibial ligament. 
& 4. Ligaments between the 
astragalus and os calcis. 
Cuboido-metatarsal ligament. 
Great calcaneo-cuboid liga- 
ment. 
Oo wromm ing 
tuberosity of the tibia; it takes a course obliquely downwards, to the 
outer side of the astragalus and os calcis. where it is attached. 
The internal lateral ligaments.—These are three cord-like bands, of which 
there is one superficial, one median, and one deep-seated. Zhe superficial 
internal ligament, the strongest and largest of the three, arises from the 
Fic. 23. — INTERNAL VIEW OF 
THE Hock JoINvT. 
Tibia. 
Internal malleolus. 
Os ealcis. 
. Large metatarsal bone. 
. Internal small metatarsal 
bone. 
External small metatarsa 
bone. 
. Astragalus. 
. Scaphoid bone. 
1. Ligament common to the 
os calcis, astragalus, and 
internal small metatarsal 
BUOn> 
zl 
Peo 
bone. 
Ligament between the tibia 
and astragalus. 
3. Calcanco - astragalan iiga- 
pe 
ment. 
4. Ligament between the as- 
tragalus and os ecalcis. 
Calcaneo-cuboid ligament. 
Calcaneo - metatarsal liga 
ment. 
SOG 
intero-internal tuberosity of the tibia, and inserts itself on the astragalo- 
metatarsal lizament, to the tuberosity on the internal surface of the astra- 
galus, the small cuneiform bone, and to the internal borders of the two 
remaining tarsal bones, viz. the scaphoid and cuneiform, and to the upper 
and inner surface of the large metatarsal bone, and head of the inner small 
splint bone. Zhe median internal ligament is composed of two cords, 
attached in common beneath the preceding, to the internal tuberosity of 
the tibia; they take a course backwards and downwards, and terminate, 
