A–Z Glossary

Glottis

The glottis is the opening between the vocal cords that closes briefly during a hiccup.

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Baby hiccups causes and when to worry

Baby hiccups causes and when to worry

What baby hiccups are A hiccup is a brief, involuntary contraction of the diaphragm followed by closure of the glottis, the opening between the vocal cords. The reflex can be triggered by stimulation of nerves involved in breathing and swallowing, including the phrenic and vagus nerves. In babies, these pathways are still developing, and ordinary […]