Page 42 - Adams and Stashak's Lameness in Horses, 7th Edition

8 Chapter 1

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Digital a.

Dorsal branch of
proximal phalanx

Palmar branch of
proximal phalanx

Bulbar a.
Coronal a.
Collateral arch
Collateral sesamoidean
ligament
Proximal Dorsal branch of
navicular middle phalanx
plexus
Palmar branch of
Distal middle phalanx
navicular
plexus
Palmar branch of
distal phalanx
Dorsal branch of
distal phalanx
Distal sesamoidean
impar ligament

Marginal a.

Terminal arch
Figure 1.8. Arterial supply to the digit of the forelimb.

articulates with the distal phalanx. Several large, irregu­ apparatus. Medial and lateral collateral sesamoidean
lar fossae lie in an elongated depression palmar to that (suspensory navicular) ligaments arise from the distal
facet (Figure 1.13). The main articular surface of the end of the proximal phalanx (Figure 1.12). These sweep
navicular bone contacts the middle phalanx. obliquely distad, each ligament crossing the pastern
The navicular bone is supported in its position by joint and attaching broadly along the proximal border
three ligaments comprising the navicular suspensory of the navicular bone. Along this border, each ligament