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The posterior surface is triangular, smooth, concave, and gives attachment to the arytenoid muscle and transversus.. The antero-lateral surface is somewhat convex and rough. On it, near the apex of the cartilage, is a rounded elevation (colliculus) from which a ridge (crista arcuata) curves at first backward and then downward and forward to the vocal process.
Relapsing polychondritis is a systemic disease characterized by repeated episodes of inflammation and in some cases deterioration of cartilage.The disease can be life-threatening if the respiratory tract, heart valves, or blood vessels are affected.
The corniculate cartilages (cartilages of Santorini) are two small conical nodules in the larynx, consisting of elastic cartilage, which articulate with the summits of the arytenoid cartilages and serve to prolong them posteriorly and medially.
Inflammation of the epiglottis is known as epiglottitis. ... 3=epiglottis, 4=plica aryepiglottica, 5=arytenoid cartilage, 6=sinus piriformis, 7=dorsum of the tongue.
In the human larynx, the cuneiform cartilages (from Latin: cuneus 'wedge' + forma 'form'; also known as cartilages of Wrisberg) are two small, elongated pieces of yellow elastic cartilage, placed one on either side, in the aryepiglottic fold. [1] The cuneiforms are paired cartilages that sit on top of and move with the arytenoids. [2]
Laryngeal paralysis in animals is a condition in which the nerves and muscles that control the movements of one or both arytenoid cartilages of the larynx cease to function, and instead of opening during aspiration and closing during swallowing, the arytenoids remain stationary in a somewhat neutral position. Specifically, the muscle that ...
Contact granulomas can be physically identified and diagnosed by observing the presence of proliferative tissue originating from the vocal process of the arytenoid cartilage. [5] Identification is carried out by laryngoscopy, which produces an image of the lesion in the form of an abnormal growth (nodule or polyp) or ulceration.
Vocal fold bowing, decreased vocal fold mobility, especially decreased mobility of the arytenoid cartilage, are often observed in vocal fold paresis. [4] [3] [5] Glottal insufficiency is another common symptom observed in vocal fold paresis. [3] [6] In this case, the vocal folds do not come together properly.