. Anatomical technology as applied to the domestic cat; an introduction to human, veterinary, and comparative anatomy. Cats; Dissection; Mammals. MAKING THE INJECTION. 145 Vessel, fine forceps by wMcli tlie edge of the incision is grasped. As soon as the canula is in the vessel, let go the edge of the slit and grasp the whole vessel where it sheaths the cannla. Pinch qnite firmly, and pull while the cannla is pushed into the vessel for about 1 cm. The canula being smooth slips into the vessel notwithstanding the pressure of the forceps. Rest the elbows on the table to steady the hands. The can
. Anatomical technology as applied to the domestic cat; an introduction to human, veterinary, and comparative anatomy. Cats; Dissection; Mammals. MAKING THE INJECTION. 145 Vessel, fine forceps by wMcli tlie edge of the incision is grasped. As soon as the canula is in the vessel, let go the edge of the slit and grasp the whole vessel where it sheaths the cannla. Pinch qnite firmly, and pull while the cannla is pushed into the vessel for about 1 cm. The canula being smooth slips into the vessel notwithstanding the pressure of the forceps. Rest the elbows on the table to steady the hands. The canula should be very smooth, and the serrations on the for- ceps must not be too deep or they will cut the vessel. The canula may be polished as directed for instruments (§ 183), and any roughness may be removed by the oil stone. As soon as the canula is properly in- serted, put the thread nearest the incision (Pig. 40) so that it wUl press on the canula within the vessel, and then tighten the knot. If the canula has an enlargement near the end (Fig. 36, A), it cannot escape when tied as in Fig. 42. If there is no enlargement or a glass canula is used, the thread must be tied to some part of the canula outside the vessel. If there are transverse projections (Fig. 36, A), the thread should be tied around one of them. If a glass canula is used, tie as shown in Fig. 42. AU the threads should be knot- ted in a hard knot finally, and the ends should be cat within a centimeter of the last knot. § 359. Meiking the Iiyection.—As soon as the canula is secured in the vessel, iill the syringe partly with water or normal salt solu- tion, connect it with the canula in the vessel, and force a little of the liquid in to make sure the canula is open and properly inserted. In connecting the canula and syringe, grasp the canula with one hand and hold it firmly while making the connection. Do the same in separating them. After forcing a small amount of water into the vessel, separate the canula
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