ANATOMY

Detailed explanation-1: -The glottis is the opening between the vocal folds in the larynx that is generally thought of as the primary valve between the lungs and the mouth; the states of the glottis are the positions generally considered to characterize the different possible shapes of this opening.

Detailed explanation-2: -Glottis-This is the space between the two vocal folds. When the vocal folds adduct, the glottis closes; when the vocal folds abduct, the glottis opens. The adjectives “glottal” and “glottic” are used to describe many aspects of vocal fold movement. The glottis opens and closes during vibration.

Detailed explanation-3: -The glottis, a slit-like opening on the floor of the pharynx, is a valve that controls airflow in and out of the respiratory passages. The glottis opens directly into a boxlike larynx.