. Diseases of cattle, sheep, goats and swine. Veterinary medicine. 728 CIRCULATORY APPARATUS. point. The operation is usually performed on the angular vein of the eye, the external saphenous vein, or the subcutaneous vein of the forearm. In operating on the facial vein the animal's head is firmly held, the operator compresses with the fingers of his left hand the facial vein at the point where it passes into the maxillary fissure, and with a lancet opens the angular vein of the eye or one of the other branches of origin which project prominently beneath the skin. Bleeding ceases as soon as the
. Diseases of cattle, sheep, goats and swine. Veterinary medicine. 728 CIRCULATORY APPARATUS. point. The operation is usually performed on the angular vein of the eye, the external saphenous vein, or the subcutaneous vein of the forearm. In operating on the facial vein the animal's head is firmly held, the operator compresses with the fingers of his left hand the facial vein at the point where it passes into the maxillary fissure, and with a lancet opens the angular vein of the eye or one of the other branches of origin which project prominently beneath the skin. Bleeding ceases as soon as the pressure is relaxed. In the case of the external saphenous vein, the vein is raised by compressing the middle region of the limb and the vessel is opened with a lancet, a little above and towards the outside of the hock. The sul^cutaneous vein of the forearm can be raised by compressing the fore liml) below the elbow. The vein is visible throughout the length of the inner surface of the radius, and can easily be opened with a lancet. It is also possible to with- draw small quantities of blood by opening the marginal veins of the ^.sc.'rA>}^;r Fig. 294.—Angular vein of the eye and facial vein. BLEEDING IN THE PIG. Breeders sometimes bleed by slitting one of the animal's ears or cutting the tail. It is preferable to bleed with a lancet from the marginal veins of the ear, the external saphenous vein a little above the hock, or the sub- cutaneous vein of the forearm. SETONS, ROWELS, PLUGS, OR ISSUES. Although the application of setons is still practised in horses, that of "issues" has largely been given up in bovine animals, although some practitioners still regard issues as of considerable value and as producing efi'ects similar to, or better than, those of sinapisms. They are usually inserted in the region of the dewlap ; the materials employed comprise black and white hellebore, veratrine and stems of Please note that these images are extracted f
Size: 1669px × 1497px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkwrjenkins
