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The coffin bone, also known as the pedal bone (U.S.), is the distal phalanx, the bottommost bone in the front and rear legs of horses, cattle, pigs and other ruminants. It is encased by the hoof capsule. In horses and other odd-toed ungulates it is the third phalanx, or "P3"; in even-toed ungulates such as cattle, it is the third and fourth (P3 ...
The proximal extremity of each of the bones of the second and third rows presents a double concavity separated by a median ridge. [ 7 ] The distal extremities are smaller than the proximal, and each ends in two condyles (knuckles) separated by a shallow groove; the articular surface extends farther on the palmar than on the dorsal surface, a ...
The only movements permitted in the joints of the digits are flexion and extension; these movements are more extensive between the first and second phalanges than between the second and third. The flexor hallucis longus and flexor digitorum longus flex the interphalangeal joint of the big toe and lateral four toes, respectively.
Joints of the hand, X-ray Interphalangeal ligaments and phalanges. Right hand. Deep dissection. Posterior (dorsal) view. The PIP joint exhibits great lateral stability. Its transverse diameter is greater than its antero-posterior diameter and its thick collateral ligaments are tight in all positions during flexion, contrary to those in the metacarpophalangeal joint.
The collateral ligaments originate on depressions on each side of the metacarpal heads dorsal to axis of rotation. From there, they extend obliquely and distally to their insertions onto tubercles at the base of the proximal phalanx.
The metacarpophalangeal joints (MCP) are situated between the metacarpal bones and the proximal phalanges of the fingers. [1] These joints are of the condyloid kind, formed by the reception of the rounded heads of the metacarpal bones into shallow cavities on the proximal ends of the proximal phalanges. [1]
Because the claw develops from germinal tissue within the third phalanx, amputation of the bone is necessary to fully remove the claw. The terms onychectomy (origin: Greek ὄνυξ onyx, 'nail' + ἐκτομή ektomē, 'excision') and declawing imply mere claw removal, but a more appropriate description would be phalangectomy, [1] excision of ...
The head of the first phalanx of the third toe also contained a possible involucrum. Multiple pathologies were also observed in five ribs and cervical vertebrae 6, thoracics (3rd, 8th, 13th) and chevron of the second tail vertebra. The right scapula, gastralia and ilium were also affected, with the ilial fracture suggesting overhead impact. [13]