Here's a breakdown:
* Vocal cords: These are two folds of mucous membrane in the larynx that vibrate to produce sound.
* Larynx: This is the voice box, located in the throat.
* Glottis: The space between the vocal cords, which is critical for breathing, speaking, and swallowing.
Here are some key points about the glottis:
* Breathing: During normal breathing, the glottis is open and relaxed, allowing air to pass through freely.
* Speaking: When we speak, the vocal cords are brought closer together and air passing through them causes them to vibrate, producing sound. The glottis can change its shape and size, affecting the pitch and loudness of the sound.
* Swallowing: During swallowing, the glottis closes tightly to prevent food and liquid from entering the trachea (windpipe). This closure is crucial to prevent choking.
The glottis is a vital structure in the human body, playing a key role in several essential functions.