. The anatomy of the domestic animals . Veterinary anatomy. 472 DIGESTIVE SYSTEM OF THE SHEEP does not project into the isthmus faucium. The mucous membrane of the latter presents two deep and very narrow tonsillar sinuses on either side. , The fornix of the pharynx presents a median plicated fold which is a continua- tion of the septum nasi. The pharyngeal orifice of the Eustachian tube has the form of a crescentic slit, placed about on a level with the ventral nasal meatus. There are two large lymph glands and a number of haemolymph glands above the pharynx. The oesophagus has a lumen of abo
. The anatomy of the domestic animals . Veterinary anatomy. 472 DIGESTIVE SYSTEM OF THE SHEEP does not project into the isthmus faucium. The mucous membrane of the latter presents two deep and very narrow tonsillar sinuses on either side. , The fornix of the pharynx presents a median plicated fold which is a continua- tion of the septum nasi. The pharyngeal orifice of the Eustachian tube has the form of a crescentic slit, placed about on a level with the ventral nasal meatus. There are two large lymph glands and a number of haemolymph glands above the pharynx. The oesophagus has a lumen of about an inch (ca. cm.) when moderately distended; otherwise it resembles that of the ox. The is like that of the ox in its general arrangement. Its average capacity is about four gallons (ca. 15 liters). The cardia is opposite the eighth intercostal space; it is just to the left of the median plane, and about two inches Dorsal curvature of rumen. Posterior V groove of Fig. 405.—Stomach of Sheep; Left View. From photograph of specimen hardened in situ. The reticulum is somewhat contracted. (ca. 5 cm.) below the vertebral column. The dorsal sac of the rumen is a little longer than tlie ventral sac and extends considerably (ca. cm.) further forward than the latter. The ventral sac is relatively larger and extends further to the right of the median plane than in the ox; its posterior blind sac extends further (ca. 6-8 cm.) back than that of the dorsal sac. The parietal attachment of the dorsal sac extends back to the second lumbar vertebra. The left longitudinal groove ex- tends upward and backward for a short distance only, and therefore does not connect with the posterior groove. There are two longitudinal grooves on the right side which join at each end, thus enclosing a long, narrow prominent area; the dorsal one contains the right ruminal artery, and the ventral one corresponds to. Please note that these images are extracted from scanned page images that may h
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