Diaphragm Say: dy-uh-fram Ever get the hiccups? Don't worry – it's just your diaphragm doing something different! This thin, dome-shaped muscle helps you breathe and separates the lungs from your stomach and intestines. When it gets irritated, the diaphragm forces the air out of your lungs in a funny way. Hic! Back to Articles Related Articles Note: All information is for educational purposes only. For specific medical advice, diagnoses, and treatment, consult your doctor. © 1995-2021 KidsHealth®. All rights reserved. Images provided by The Nemours Foundation, iStock, Getty Images, Veer, Shutterstock, and Clipart.com.