. The anatomy of the domestic animals. Veterinary anatomy. 408 DIGESTIVE SYSTEM OF THE HORSE guttural pouches. From the Eustachian opening a fold of the mucous membrane (Plica salpingo-pharyngea) passes toward lint does not reach tlie aditus laryngis. A horizontal fold, the posterior pillar of the soft palate (Arcus iiharyngo-palatinus), passes along the ventral ]iart of the lateral wall and unites with its fellow over the entrance to the oesophagus. The dorsal jiart of the cavity (Pars respiratoria) is lined with a ciliated epithelium, while the ventral part (Pars digestoria) has a stratifiet
. The anatomy of the domestic animals. Veterinary anatomy. 408 DIGESTIVE SYSTEM OF THE HORSE guttural pouches. From the Eustachian opening a fold of the mucous membrane (Plica salpingo-pharyngea) passes toward lint does not reach tlie aditus laryngis. A horizontal fold, the posterior pillar of the soft palate (Arcus iiharyngo-palatinus), passes along the ventral ]iart of the lateral wall and unites with its fellow over the entrance to the oesophagus. The dorsal jiart of the cavity (Pars respiratoria) is lined with a ciliated epithelium, while the ventral part (Pars digestoria) has a stratifietl squamous e]iithelium. The conununication between the two is oval. ' 1 CM. > THE Fig, 349.—Posterior Part of a .S\gittal Section of ; .u^-d of Neck of Horse, Cu Left of the Median Plane. 1, Posterior nares; ;2, pharj' orifice of Eustachian tube; 3, aditus lan,-ngis; 4i aditus cesopbagi; o, posterior pillar of soft palate; o', junction of 5 with its fellow over entrance to cesophagus; 6, epiglottis; 7, body of thyroid cartilage; 5, arj^tenoid cartilage; 5, 5, cricoid cartilage; if), true vocal cord; i/, false vocal cord; i^, lateral ventricle of larj'nx; 13, crico-arytenoideus dorsalis; 14i cesophagus; 15, external carotid arterj" 16, hj-poglossal ner\"e; 17, glosso-pharyngeal ner\^e; IS. great cornu of hyoid bone; 19, Eustachian tube; £0. body of hyoid bone; 21, hyoideus transversus; 22, ridges of hard palate; 22\ soft palate; 23, septum between frontal sinuses; 24> oIfactor>' mucous membrane; 2d, sphenoidal sinus; 26, basilar part of occipital bone; 26', supra-occipital; 27, body of sphenoid bone; 2S, pituitary- body; 39, chiasma opticum; SO, corpora quadrigemina; 31, thalamus; 32, arachnoid; 33, odontoid ligament; 34, posterior auricular muscles. and is bounded hy the free edge of the soft palate and its posterior pillars; it is termed the pharyngeal isthmus. On either side of the aditus laryngis is a narrow deep depression, the pirif
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
