Page 142 - Anatomy and Physiology of Farm Animals, 8th Edition

Anatomy of the Muscular System / 127

sac that contains a small amount of synovial horses) may result in a mild, painless
fluid to reduce friction between the moving
VetBooks.ir tendon and adjacent structures. The double tenosynovitis of the digital flexor tendon
sheath (windpuffs) or the deep digital
fold of membrane formed where the edges of
the synovial sheath meet is the mesotendon. flexor tendon sheath proximal to the
hock (thoroughpin).
Vessels and nerves to the tendon reach it by
passing through the mesotendon.
Inflammation of a synovial sheath Muscles of the Thoracic Limb
and its tendon is called tenosynovitis.
Low‐grade trauma (for instance, as asso- See Figure 7‐5 and Table 7‐2 for an overview
ciated with rigorous schooling of young of thoracic limb muscles.

(A) (B)
Superficial
pectoral M.

M. Extensor carpi
radialis

Radius

M. Flexor carpi Brachialis
radialis
M. Flexor carpi M. Extensor
ulnaris carpi ulnaris
M. Extensor carpi M. Extensor
obliquus M. Extensor carpi carpi radialis
radialis
Common digital
Common digital extensor M.
extensor M.
Lateral digital Lateral digital
extensor M. extensor M. M. Extensor
carpi ulnaris
M. Extensor
carpi obliquis
Superficial
digital flexor M.
Joining of digital
extensor tendons Superficial &
deep digital
flexor
Suspensory ligament tensons

Palmar annular ligament Suspensory
of the fetlock ligament

Figure 7-5. Muscles (m.) of the thoracic limb. (A) Equine. (B) Bovine.