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Two calcanea. One bone of the metacarpus. Another of the metatarsus. A fragment of the frontal or coronal bone, containing half of an orbital cavity. A middle third of the tibia. Two more fragments of tibia. Two astragoli. One upper portion of shoulder-blade. One fragment of the lower jawbone.
Carter's drawings in Gray's 'Anatomy. The hand is drawn to a larger scale than the foot. The line 'a a' in the hand indicates the boundary between the carpus and the metacarpus; 'b b' that between the latter and the proximal phalanges; 'c c' marks the ends of the distal phalanges.
This condition is known among horsemen as "wind-gall" or "fetlock-gall." The sheath of the flexor tendons, which begins about the middle portion of the lower third of the metacarpus, and continues downward below the pastern joint is often distended.
"These divisions consist of the head, with its features taken in three points of view, front, back, and profile; the neck in like manner, also the thorax, abdomen, and pelvis; thigh, knee, leg, ankle, the carpus, metacarpus, and toes; the clavicula, arm, fore-arm, wrist, carpus, metacarpus, and fingers.
Situated as they are, between the bifurcating portions of the suspensory ligament and the posterior part of the distal end of the metacarpus with which they articulate the sesamoid bones serve to change the course of the branches of the suspensory ligament in a manner that they give firm support to this joint. Volar flexion is limited by the extensors of the phalanges.
Common examples are in fractures of the metacarpus and metatarsus of the first phalanx. This kind of injury in mature horses usually produces an irreparable condition, and viewed economically, is generally considered fatal. Comminuted Fractures, as the term implies, are those cases wherein the bone is reduced to a number of small pieces.
Symptomatology. Abnormal mobility of the broken parts of bone and crepitation mark fracture of the metacarpus, and the condition is easily diagnosed. In many instances, when compound fracture exists, broken ends of bone are protruding through the skin.
It may cause no symptoms or it may interfere with the use of the hand, especially in grasping movements and when the hand is dorsiflexed. In girls it may give rise to pain which shoots up the arm. Ganglia are also met with on the dorsum of the metacarpus and on the palmar aspect of the wrist. [Illustration: FIG.
Barrett discovered in it, near Cambridge, in 1858, the remains of a bird, which was rather larger than the common pigeon, and probably of the order Natatores, and which, like most of the Gull tribe, had well-developed wings. Portions of the metacarpus, metatarsus, tibia, and femur have been detected, and the determinations of Mr. Barrett have been confirmed by Professor Owen.
The French Museum possesses mammoth and rhinoceros bones bearing fine scratches produced by the weapons which had been used to despatch the animals. The metacarpus of a large beast of prey, found at Eyzies, retains marks no less clear, and the skull of a bear front Nabrigas has in it a large wound which must have been made by a missile of some kind.
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