It is the thoracic diaphragm.
The diaphragm moves down to make the lungs expand (inhalation)
The diaphragm moves down when you breathe in, so your lungs will expand to take in as much oxygen as possible.
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.
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.
The diaphragm moves down to make the lungs expand (inhalation)
The diaphragm goes down, pulling air into the lungs. Your ribs expand, helping your lungs to expand also.
Yes, when you breathe, your ribcage expands (moves up and out) as your lungs fill with air, and contracts (moves down and in) as you exhale. This movement helps create the necessary space within the chest cavity for the lungs to expand and contract efficiently during the breathing process.
No, the diaphragm moves down during inhalation. This action increases the space in the chest cavity, allowing the lungs to expand and fill with air. The downward movement of the diaphragm creates negative pressure in the chest, which draws air into the lungs.
The diaphragm is a convex shaped muscle (convex side within the chest cavity).When the diaphragm muscle contracts it flattens out and drops down out of the chest cavity making more room and creating a vacuum -- air then rushes into the lungs.When the diaphragm relaxes it moves back up into the chest cavity and expels the air on the lungs. During inhalation, the increased volume of the lungs causes the ribcage to expand. Inhalation - Diaphragm CONTRACTS and moves DOWN (to allow more space in the chest cavity for lungs to expand).Exhalation - Diaphragm RELAXES and moves UP (to force air out of the lungs).
The diaphragm contracts and a vacuum is created inside the thorax. The lungs expand to fill the space created, as reduced air pressure allows air to expand the lungs. The intercostals' muscle contract and lift the ribcage further increasing the thoracic space.
The diaphragm, intercostal muscles, and lungs work together to help you breathe. The diaphragm moves down, the intercostal muscles expand the rib cage, and the lungs expand to take in air for oxygenation.
Simple answer. All your life your lungs inhale and exhale oxygen. This is facilitated by the diaphragm, a muscle just below the lungs. When this muscle moves down a partial vacuum is created allowing the lungs to inflate filling the space created by the moving diaphragm, it then moves up again compressing the lungs and therefore expelling the air in them.