. The anatomy of the domestic animals . Veterinary anatomy. BONES OF THE THORACIC LIMB 201 to sWe ; T "IT 'k*'?'"' T^^'' ^°â¢^^1 by them is concave from side sur act; ofX. r ^TX^'fTl'^i ^^^ ^'«*^1 ^"^s (Capitula) have articular cent ?hp 11 wT ^ ^'^^' ^;^* ^'^' ^ '""^^^^^ "dg*^ °n the volar aspect, c-x- cept the first, which is grooved. Ossification is complete at five or six months of TheThw^nitL'hito'r^f Sr" """â â "'"'" ""= "-'â â¢"»â >'- '-⢠longest; the first is very short and does not come in
. The anatomy of the domestic animals . Veterinary anatomy. BONES OF THE THORACIC LIMB 201 to sWe ; T "IT 'k*'?'"' T^^'' ^°â¢^^1 by them is concave from side sur act; ofX. r ^TX^'fTl'^i ^^^ ^'«*^1 ^"^s (Capitula) have articular cent ?hp 11 wT ^ ^'^^' ^;^* ^'^' ^ '""^^^^^ "dg*^ °n the volar aspect, c-x- cept the first, which is grooved. Ossification is complete at five or six months of TheThw^nitL'hito'r^f Sr" """â â "'"'" ""= "-'â â¢"»â >'- '-⢠longest; the first is very short and does not come in contact with the ground in walking. The first phalanges of the chief digits have four-sided shafts, which are slightly curved dorsally. The proximal end of each has a con- cave surface for articulation with the metacarpal bone and is deeply notched behind. The distal end has a trochlea for articulation with the second pha- lanx, and depressions on each side for ligamentous attachment. The second phalanges are about two-thirds of the length of the first phalanges. The proximal articular surface consists of two cavities separated by a sagittal ridge. The distal extremity is wider and flatter than that of the first. The third phalanges correspond in general to the form of the claws. The base has an [articular surface adapted to [ the second phalanx and is encircled by a collar of bone (Crista unguicularis). The volar surface bears a wing or tuber- osity, and on each side of this is a fora- men. The ungual part is a curved rod with a blunt-pointed free end. It-is rough and porous. Its base forms with the collar previously inentioned a deep groove, into which the proximal border of the claw is received. The two pha- langes of the first digit resemble in ar- rangement the first and third phalanges of the other digits. Ossification is complete at five or six months. Nine volar sesamoids are usually present. Two are found at each meta- carpo-phalangeal joint of the ch
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