. The anatomy of the domestic fowl . Domestic animals; Veterinary medicine; Poultry. ANGIOLOGY 233 THE Venous Trunks The venous blood enters the lungs from the right ventricle through the two pulmonary arteries (Fig. 70, No. i and 2). The two pulmonary veins (Fig. 70, No. 9 and 10) collect the ar- terial blood from the lungs, and empty it into the left auricle. There are three venae cavae which collect the systemic blood and empty it into the right auricle. These venae cavae are two anterior (Fig. 70, No. 37 and 38) and one posterior (Fig. 70, No. 8). Each anterior vena cava is formed by the u
. The anatomy of the domestic fowl . Domestic animals; Veterinary medicine; Poultry. ANGIOLOGY 233 THE Venous Trunks The venous blood enters the lungs from the right ventricle through the two pulmonary arteries (Fig. 70, No. i and 2). The two pulmonary veins (Fig. 70, No. 9 and 10) collect the ar- terial blood from the lungs, and empty it into the left auricle. There are three venae cavae which collect the systemic blood and empty it into the right auricle. These venae cavae are two anterior (Fig. 70, No. 37 and 38) and one posterior (Fig. 70, No. 8). Each anterior vena cava is formed by the union of a vena jugu- laris, a vena vertebralis, and a vena subclavicularis (Fig. 63, No. 15). ^• X--. Fig. 71.—Veins of the liver of a fowl, .i, Vena mesenterica communis. 2, Vena portalis propria. 3, Anterior vena mesentericuB. 4, Vena portalis dex- ter, 5, Vena portalis sinister. 6, Posterior vena cava. 7, Celiac axis. 8, Base of the heart. 9, The liver. 10, Hepatic veins. The jugular vein is formed by the union of the vena cephahca anterior, and the vena cephalica posterior. The jugular vein (Fig. 62, No -B i) passes along the side of the neck and lies near the trachea, the esophagus, and the pneumogastric nerve. Near the base of the skull the two jugular veins, the right and the left, are connected by a transverse vein. By this anasto- mosis part of the blood from the left jugular vein is sent into the right. Therefore the right jugular vein is larger than the left. The jugular veins collect the blood from the tongue region, the thyroid, the esophagus, the trachea, the crop, and other structures along its course through the cervical Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kaupp, Benjamin Franklyn, 1874-. Philadelphia ; London : W. B. Saunders Company
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