| guttural | Relating to the throat. (05 Mar 2000) |
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| guttural duct | A tube leading from the tympanic cavity to the nasopharynx; it consists of an osseous (posterolateral) portion at the tympanic end, and a fibrocartilaginous (anteromedial) portion at the pharyngeal end; where the two portions join, in the region of the sphenopetrosal fissure, is the narrowest portion of the tube (isthmus); the auditory tube enables equalization of pressure within the tympanic cavity with ambient air pressure, referred to commonly as "popping of the ears". Synonym: tuba auditiva, tuba auditoria, eustachian tube, guttural duct, otopharyngeal tube, otosalpinx, pharyngotympanic tube, salpinx, tuba acustica, tuba eustachiana, tuba eustachii. (05 Mar 2000) |
| guttural pouch | A structure in the horse which is a diverticulum of the auditory (eustachian) tube; subject to chronic infections and inflammation and frequently necessitating surgery for relief. Hartmann's pouch, a spheroid or conical pouch at the junction of the neck of the gallbladder and the cystic duct. Synonym: ampulla of gallbladder, fossa provesicalis, pelvis of gallbladder. Heidenhain pouch, a small sac or pouch of the stomach, vagally denervated and closed off from the main cavity but with an opening through the abdominal wall, fashioned for the purpose of obtaining gastric juice and for studying gastric secretion in physiologic experiments. (05 Mar 2000) |
| guttural pulse | A pulsation felt in the throat. (05 Mar 2000) |
| guttural rale | Sound heard over the lung but resulting from upper airway obstruction. (05 Mar 2000) |
| gutturotetany | Laryngeal spasm causing a temporary stutter. Origin: L. Guttur, throat, + G. Tetanos, convulsive tension (05 Mar 2000) |