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Histology of the vocal folds
Histology is the study of the minute structure, composition, and function of tissues.〔Dorland's Medical Dictionary (Abridged 25th ed.). (1980). Philadelphia, PA: The Saunders Press.〕
==Histoanatomy of the glottis==
The glottis is defined as the true vocal folds and the space between them. It is composed of an intermembranous portion or anterior glottis, and an intercartilaginous portion or posterior glottis. The border between the anterior and posterior glottises is defined by an imaginary line drawn across the vocal fold at the tip of the vocal process of the arytenoid cartilage. The anterior glottis is the primary structure of vocal fold vibration for phonation and the posterior glottis is the widest opening between the vocal folds for respiration. Thus, voice disorders often involve lesions of the anterior glottis. There are gradual changes in stiffness between the pliable vocal fold and hard, hyaline cartilage of the arytenoid. The vocal processes of the arytenoid cartilages form a firm framework for the glottis but are made of elastic cartilage at the tip. Therefore, the vocal process of the arytenoid bends at the elastic cartilage portion during adduction and abduction of the vocal folds.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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