answersLogoWhite

0

Mostly, it is due to the glottis. Your diaphragm contracts first causing an intake of air. The "glottis" (the vocal part of your larynx) closes and stops the air coming in. When that air hits the glottis, which is closed, it causes the sound that you are referring to as a hiccup.

User Avatar

Wiki User

15y ago

What else can I help you with?