Lamina propria is a layer of connective tissue found within the vocal folds, located beneath the epithelium. The lamina propria consists of three layers: the superficial, intermediate, and deep layers. Each layer has distinct properties related to elasticity, flexibility, and stiffness, contributing to vocal fold vibration and sound production. The lamina propria plays a vital role in vocal fold function and is of significant importance in the study of voice physiology and vocal health.
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