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Short answer: to let air in.
Medium answer: a big pint glass holds more water than a little tiny shot glass. The pint glass has more room, more volume. Your expanded chest holds more air so air rushes to fill the space.
Longer answer: when you breathe in your intercostal muscles contract pulling your rib cage up and out. At the same time your diaphragm, the muscular sheet at the bottom of your lungs pulls down.
What else can I help you with?
What happens to the volume of your chest cavity when you inhale?
When you inhale, the volume of your chest cavity increases. This expansion is caused by the contraction of the diaphragm and intercostal muscles, allowing more space for the lungs to expand and fill with air.
When you inhale which organ contracts and moves down?
When you inhale, the diaphragm contracts and moves downward. This movement creates more space in the chest cavity, allowing the lungs to expand and fill with air.
What happens to the size of the chest cavity as you inhale?
The movement of the diaphragm affects the size of the chest cavity by when you inhale the chest cavity enlarges, but when you exhale the chest cavity becomes smaller.
What makes the chest cavity larger when you inhale?
When you inhale, the diaphragm muscle contracts and moves downward, and the rib cage expands as the intercostal muscles between the ribs contract. This creates more space in the chest cavity, allowing the lungs to expand and fill with air.
When the diaphragm moves up do you inhale?
No, as you inhale the diaphragm is contracting and pulling down, expanding the lungs. As you breathe out, the muscle relaxes and rises up again.
How do you inhale and exhaile?
When you inhale your rib muscle and diaphram contract and expand the chest cavitie. When you exhale you rib muscle and diaphram relax, reducing the size of the chest cavitie.
What happens to the volume of your chest cavity when you inhale?
When you inhale, the volume of your chest cavity increases. This expansion is caused by the contraction of the diaphragm and intercostal muscles, allowing more space for the lungs to expand and fill with air.
Does your chest expand because your lungs inflate or do your lungs inflate because your chest expands?
There are no muscles in the lungs that help inhale or exhale, this is the job of the diaphragm.
Would you die if you were up to your neck in cement?
You would suffocate because you would not be able to expand your chest and inhale.
What happens to lungs when you inhale?
what happens when you inhale is that air goes into your lungs and your lungs get bigger ...Actually, your diaphragm moves to expand the volume of your thoracic cavity, which pulls a partial vacuum on your lungs, causing them to expand FIRST...and THEN the partial vacuum created by your expanded lungs causes air to move into them. When you breath out, it causes the reverse to occur.
When you inhale which organ contracts and moves down?
When you inhale, the diaphragm contracts and moves downward. This movement creates more space in the chest cavity, allowing the lungs to expand and fill with air.
What happen to the lung if you are inhale?
it expand
What happens to the size of the chest cavity as you inhale?
The movement of the diaphragm affects the size of the chest cavity by when you inhale the chest cavity enlarges, but when you exhale the chest cavity becomes smaller.
What is the movement of the chest cavity and the diaphragm?
inhale
What makes the chest cavity larger when you inhale?
When you inhale, the diaphragm muscle contracts and moves downward, and the rib cage expands as the intercostal muscles between the ribs contract. This creates more space in the chest cavity, allowing the lungs to expand and fill with air.
When the diaphragm moves up do you inhale?
No, as you inhale the diaphragm is contracting and pulling down, expanding the lungs. As you breathe out, the muscle relaxes and rises up again.
What happens to your lungs when you inhale?
the chest cavity expands.
