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Hiccups
Hiccups occur when a spasm contracts the diaphragm, a large sheet of muscle that separates the chest cavity from the abdominal cavity. The spasm causes an intake of breath that is suddenly stopped by the closing of the vocal cords (glottis). This closing causes the sound of the hiccup.
Current as of: September 29, 2025
Author: Ignite Healthwise, LLC Staff
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