What happen to the chest cavity and diaphragm when you inhale?

— The diaphragm contracts and flattens upon inhalation, and the chest cavity expands. This contraction creates a vacuum that draws air into the lungs. Exhalation causes the diaphragm to relax and return to its domelike shape, forcing air out of the lungs.

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1. a.

2. c.

3. a.

4. a.

5. d.

6. d.

A. Yan po ang tamang question

Breathing in

When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale

When you breathe in, or inhale, your diaphragm contracts and moves downward. This increases the space in your chest cavity, and your lungs expand into it. The muscles between your ribs also help enlarge the chest cavity. They contract to pull your rib cage both upward and outward when you inhale.