Lab 20 - Image 15

Split equine head. 1, dorsal concha (ethmoconcha I) ; 2, dorsal conchal sinus; 3, nasomaxillary aperture; 4, frontal sinus; 5, ethmoconcha II; 6, ethmoconcha III; 7, ventral concha; 8, vomer; 9, hard palate; 10, lateral wall of the nasopharynx; 11, entrance to the auditory tube and guttural pouch; 12, lumen of the auditory tube; 13, guttural pouch; 14, sphenopalatine sinus.