. The anatomy of the domestic animals. Veterinary anatomy. RESPIRATORY SYSTEM OF THE OX—THE XASAL CAVITY 537 RESPIRATORY SYSTEM OF THE OX THE NASAL CAVITY The nostrils 'Fig. 379), situated on either side of the muzzle, are relatively small, and are much less dilatable than those of the horse. The alae are thick and firm. The superior commissure narrow. There is no diverticulum nasi. The skin is smooth, bare, and moist, and there is no clear line of demarcation between it and the nasal mucosa. The opening of the naso-lacrimal duct is not visible, as Frontal eminence Frontal sin Great cthmo-
. The anatomy of the domestic animals. Veterinary anatomy. RESPIRATORY SYSTEM OF THE OX—THE XASAL CAVITY 537 RESPIRATORY SYSTEM OF THE OX THE NASAL CAVITY The nostrils 'Fig. 379), situated on either side of the muzzle, are relatively small, and are much less dilatable than those of the horse. The alae are thick and firm. The superior commissure narrow. There is no diverticulum nasi. The skin is smooth, bare, and moist, and there is no clear line of demarcation between it and the nasal mucosa. The opening of the naso-lacrimal duct is not visible, as Frontal eminence Frontal sin Great cthmo-turhinate Dorsal turbinat Dorsal meatus Middle meatus Ventral turbinate. Ventral meatus Fig. 476.—Sagittal Sectiox of Head of Cow. J, Cerebral hemisphere; 5, lateral ventricle; ??, thalamus. 4. corpora quadrigemina; .5, optic chiasma; ^.pituitary bod>"; 7, pons; 8, medulla oblongata; 5, cerebellum; 10, spinal cord; 11, ventral straight muscles; 7^, pharj'ngeal lymph gland; 75. arj-tenoid cartilage; 74, epiglottis; 7J, cricoid cartilage; 75, vocal cord; 77, palatine sinus; 7S, soft palate; 75, Eustachian opening; C7, C3, C3, first, second, and third cer\*ical vertebrse; , basioccipital; .Sp., pre- sphenoid. it is on the lateral wall of the nostril, and is concealed by the cartilaginous pro- longation of the ventral turbinate. There are two parietal cartilages on either side, united by fibrous tissue. The dorsal cartilages are thin laniin;p which curve ventro-laterally from the dorsal margin of the septal cartilage; they are prolonga- tions of the nasal bones, and carry the alar cartilages on their anterior extremities. The ventral pair are lateral continuations of the basal lamelliB of the ventral tur- binates. They lie along the nasal processes of the premaxillse; anteriorly they i become thicker, turn a little upward, and each blends v,iih the cartilaginous pro- j longation of the upper coil of the ventral turbinate. The alar cartilages are of. Please note that
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Keywords: ., bo, bookcentury1900, bookdecade1910, booksubjectveterinaryanatomy
