Quain's elements of anatomy . aryteno-epiglottidean muscles, with which theyare closely associated both in the disposition of their fibres and in theiraction. The arytenoid muscle (fig. 45G, 2) passes straight acrossbetween the arytenoid cartilages, and its fibres are attached to the wholeextent of the concave surface on the back of each. The aryteno-epiglottidean muscles (fig. 456, 5 ; fig. 458, ) arising nearthe inferior and outer angles of the arytenoid cartilages, decussateone with the other, and their fibres are partly attached to the upperand outer part of the opposite cartilage,
Quain's elements of anatomy . aryteno-epiglottidean muscles, with which theyare closely associated both in the disposition of their fibres and in theiraction. The arytenoid muscle (fig. 45G, 2) passes straight acrossbetween the arytenoid cartilages, and its fibres are attached to the wholeextent of the concave surface on the back of each. The aryteno-epiglottidean muscles (fig. 456, 5 ; fig. 458, ) arising nearthe inferior and outer angles of the arytenoid cartilages, decussateone with the other, and their fibres are partly attached to the upperand outer part of the opposite cartilage, partly pass forwards in thearyteno-epiglottic fold, and partly join the fibres of the thyro-arytenoidmuscle. Action.—The arytenoid muscle di-aws tiie arytenoid cartilages together, the structure of the crico-arytenoid joints, this approximation when com-plete is necessarily accompanied with depression. If the muscle is paralysed,the intercartilaginous part of the glottis remains patent, although the mem- Fio-.
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