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HA6: Larynx and Trachea, monkey

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HA6 is a higher magnification view of the ventricle (X). At the top are serous/mucous glands. A is elastic cartilage. T is the thyroarytenoid muscle. The arrow identifies the vocal fold,which has numerous, thick bundles of elastin that form the vocal ligament. The true vocal fold vibrates rapidly during sound production and the ligament provides elasticity for this task.