When you inhale.
Exhaling is expelling used air from the lungs. During exhalation,the diaphragm moves upward while the rib cage moves downward so it goes back to its dome-shaped position
When breathing in, or inhaling, the diaphragm contracts, or tightens. When exhaling, or breathing out, the diaphragm expands, or loosens.
eyepiece diaphragm
You may be thinking of the diaphragm. There are others such as the intercostals.
It will decrease if the object moves upward; decrease if the object moves downward.
It contracts (and moves downward).
When you inhale, your diaphragm contracts and moves downward, and when you exhale, your diaphragm relaxes and moves upward.
the diaphragm contracts and moves downward, and the rib cage moves upward and outward.
the diaphragm. It is right above the heart and lungs, and expands and contracts when you breathe in and out. You can almost feel it move down a little, when you release air.
Breathing is done by your diaphragm. When you breathe in, your diaphragm tightens (contracts) and moves downward so your lungs can expand. When you breathe out (exhale) your diaphragm relaxes (expands) and moves up into your chest.
Inhalation
Inhalation
Your diaphragm
The opposite. When you exhale, the diaphragm moves upward to push the air out of the lungs.
The diaphragm moves down and contracts, flattening itself, when you inhale.
During inhalation, the diaphragm contracts flattening out its usual dome shaped appearance. This has the effect of lengthening the lungs and increasing the intrapulmonary volume. When the volume increases, the pressure drops and air flows into the lungs.
The diaphragm muscles contract and relax pulling the diaphragm down and then releasing it. When we inhale, our diaphragm muscles contracts and flattens. When we exhale, they relax and arch upwards.