Let me share with you a difference between glottis and epiglottis.
| Aspect | Glottis | Epiglottis |
| Introduction | Part of the larynx (voice box) | Part of the larynx, Leaf-shaped cartilage located above the glottis |
| Function | Plays a crucial role in phonation (sound production) by regulating the airflow in and out of the trachea | Acts as a lid or cover for the glottis, preventing food and liquids from entering the trachea during swallowing |
| Role in swallowing | Not directly involved in swallowing | Directly involved in the process of swallowing, preventing aspiration of food into the airway |
| Visibility | Visible through the laryngoscope during examination | Visible during medical imaging or endoscopy procedures focusing on the larynx |
| Protection of airway | Primarily involved in sound production and air passage for breathing | Primarily serves as a protective mechanism during swallowing to prevent aspiration into the trachea |
| Nerve supply | Innervated by nerves controlling vocal cord muscles | Innervated by nerves controlling the muscles that move the epiglottis |