Diaphragm

What is the diaphragm? The diaphragm is a dome-shaped sheet of muscle that separates the space with the lungs and heart from the space with the stomach, liver and intestines.

Diaphragm.

The diaphragm muscle is used every time we breathe. When the muscle is tightened, it shortens, drops down a bit, and the space for the lungs gets bigger. As the pressure inside this space is less than the pressure of the outside air, air is pulled into the lungs.

When the muscle is relaxed, it goes back into a dome shape, making the space for the lungs smaller and pushing air from them.

Explore these further resources...

(These links take you to other parts of our web site, never to outside locations.)

You can search in these books:


You can look in this toolkit screen for books, videos and teacher resources:

Jump to Body toolkit screen

The link above will take you to a library containing a selection of:
books, pictures, videos and teacher's stuff related to the search word.
The button below will take you back to the word list.
© Curriculum Visions 2021