. The comparative anatomy of the domesticated animals. Veterinary anatomy. THJi: ANTERIOR LULBS. 89 8. Digital Region.âIn the domesticated animals the number of complete digits is as follows:â Carnivora 5 Pig 4 Euminants 2 The five digits of the Dog and Cat are exactly analogous to those of Man. Thus, the external corresponds to the auricularis, the second to the annularis, the third to the ruedius. the fourth to the index, and the internal to the thumb.âThe latter, very small, has only two plialanges and does not cotne into contact witli the ground. Eath of the first fuur is composeJ: 1, Of a
. The comparative anatomy of the domesticated animals. Veterinary anatomy. THJi: ANTERIOR LULBS. 89 8. Digital Region.âIn the domesticated animals the number of complete digits is as follows:â Carnivora 5 Pig 4 Euminants 2 The five digits of the Dog and Cat are exactly analogous to those of Man. Thus, the external corresponds to the auricularis, the second to the annularis, the third to the ruedius. the fourth to the index, and the internal to the thumb.âThe latter, very small, has only two plialanges and does not cotne into contact witli the ground. Eath of the first fuur is composeJ: 1, Of a first phulanx, to wliich are annexed two sesamoids; 2, A second fhalanx, which yet represents a veritable long bone; 3. A conical phalan- gette, pointed, bent downwards, and hollowed at its base by a circular groove, in which is lodged the matrix of the claw. The small sesamoid (,or navicular bone) is absent, but is replaced by a prominence of the ungual phahmx. The auricularis and index are alike, and not so long as the annularis and mediiis, which are the same in length. The Pig has four complete digits articulating from the metacarpals; the thumb is absent. The index and auricularis, or fourth and fifth digits, are short, and do not usually rest on the gruund. Huminaiits certainly possess four digits, but only two are perfectâthe medius and annularisâand these articulate with the inferior of the principal metacarpal. The two othersâthe index and auricularis - are in a rudimentary condition, and are represented by two small bones situated above and J^hind the naetacarpo-phalangeal articulation. In the Ox, Sheep, and Goat, each of the perfect digits comprises three phalanges and three sesamoids. The ^r*i^/(«?ana; fairly represents the moiety p. r, of the phalanx in the Horse. It has no posterior °' imprints, but shows them on its inner surface for the attachment of several ligaments. This internal face is plane, and the external convex; these characters
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