What is the glottis?

The glottis refers to the anatomical structure that serves as the opening of the larynx and is situated between the vocal cords. Specifically, it is the space through which air passes during breathing and which also plays a crucial role in sound production when the vocal cords are manipulated. The position and tension of the vocal cords can dramatically affect the pitch and volume of sound produced, making the glottis an essential component in vocalization.

In contrast, the lower portion of the larynx does not encompass the functional aspect of the glottis as it refers more broadly to the structure surrounding the glottis. The option describing “Alicia of the vocal cords” appears to contain a typographical error, as “Alicia” is not related to or recognized within the anatomy of the vocal system. Lastly, the entrance to the esophagus does not relate to the glottis, as it is a separate pathway that leads to the digestive system rather than the respiratory and vocal functions associated with the larynx.