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Breathing consists of two phases, inspiration and expiration.
- During inspiration, the diaphragm and the intercostal muscles contract. The diaphragm moves downwards increasing the volume of the thoracic (chest) cavity, and the intercostal muscles pull the ribs up expanding the rib cage and further increasing this volume. This increase of volume lowers the air pressure in the alveoli to below atmospheric pressure. Because air always flows from a region of high pressure to a region of lower pressure, it rushes in through the respiratory tract and into the alveoli. This is called negative pressure breathing, changing the pressure inside the lungs relative to the pressure of the outside atmosphere.
- In contrast to inspiration, during expiration the diaphragm and intercostal muscles relax. This returns the thoracic cavity to it's original volume, increasing the air pressure in the lungs, and forcing the air out.
What else can I help you with?
what is to breath?
The opposite to breathing in
Breathing out is an example of this life process?
the respritory process
Is respiration and breathing same process?
Repiration and Breathing are not the same process. Respiration is converting glucose to useable energy.
What process is breathing out carbon dioxide part of?
Respiration is breathing in and absorbing oxygen, and breathing out carbon dioxide.
Are breathing and respiration the same process?
Breathing and respiration are related but not the same process. Breathing is the physical act of inhaling and exhaling air, while respiration is the chemical process where cells convert oxygen and nutrients into energy.
Is breathing a inflammatory process?
Breathing is not an inflammatory process. An inflammatory process is where the body's immunity system through the white blood cells will respond to a particular injury.
Is breathing a metabolic process?
yes
What life process is the diaphragm in?
Breathing.
What are the 3 parts of the breathing process?
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What is breathing the process of?
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What are 3 Differences between Respiration and Breathing?
Breathing is the process wherein the living organism inhales oxygen and exhales carbon dioxide, whereas respiration is the process that uses oxygen to produce energy. Breathing is a physical process, but respiration is a chemical process. Breathing occurs with the help of organs like nose, mouth, lungs
What is ventilation?
first of all, its ventilation and it means breathing. but don't get mixed up with respiration and breathing they are different!
