ANATOMY AND PHYSIOLOGY OF THE HOUSERS FOOT. 351 
of course, behind that just described. It is more oblique 
from before to behind than the latter, and is in reality only a 
continuation in the greater portion of its fibres, of the lateral 
ligament that attaches the first and second phalanges to each 
other ; below this attachment it appears as a somewhat elastic 
fibrous cord that passes downward and backward, to be 
chiefly inserted into the extremity and upper border of the 
Fig. 8. — Posterior face of the foot. a. Deep flexor tendon entering the 
sheath formed for it by the superficial or perforatus tendon, b. Its 
emergence from this sheath,— immediately below one half of its sub- 
stance is excised to show the parts beneath, c. Perforatus or super- 
ficial flexor tendon of the foot, — interiorly is seen its insertions into 
each side of the coronary bone. d. First phalanx or large pastern bone. 
e e. Lateral reinforcing bands of the plantar aponeurosis, f. Accessory 
sheath of ditto, g. Insertion of the plantar aponeurosis into the semi- 
lunar ridge of the pedal bone. h. Posterior surface of the coronary 
bone over which the perforans tendon glides, i. Its surface for articu- 
lation with the navicular bone. j. Complementary ligament of the 
navicular bone. k. Posterior lateral ligament passing to the navicular 
bone. /. Posterior or inferior shrface of the navicular bone for contact 
with the tendon, m. Inferior ligament uniting the navicular to the 
pedal bone. n. Surface on the pedal bone for the insertion of the 
flexor tendon of the foot. o. Lateral cartilage,— its fellow on the other 
side has been removed, p. Posterior face of the plantar aponeurosis. 
q. Sole of the pedal bone, r r. Uniting branches between the sus- 
pensory ligament of the fetlock and the extensor tendon of the foot. 
s. Fibrous sheath of the- perforatus tendon. 
