intercartilaginous

It is composed of an intermembranous portion or anterior glottis, and an intercartilaginous portion or posterior glottis.

The medial surface is narrow, smooth, and flattened, covered by mucous membrane, and forms the lateral boundary of the intercartilaginous part of the rima glottidis.

The external intercostals are used in inspiration, the intercartilaginous part, the part of the muscle that lays between the cartilage portion of the superior and inferior ribs, aids in elevating the ribs and expanding the thoracic cavity.

It is normally subdivided into two parts, that between the arytenoid cartilages is called the intercartilaginous part (or the intercartilaginous glottis, respiratory glottis, or interarytenoid space), and that between the vocal folds the intermembranous part or glottis vocalis.