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the intercostal muscles contract
keep your chest stable, you dont need to raise your chest
When you breath in, it becomes larger. Conversely, it is smaller when you exhale.
Here is the entire list:Scalenes (Elevate rib cage, assist in inhalation)Sternocleidomastoid (Elevate Rib Cage, assist in inhalation)Pectoralis minor (Elevate Rib Cage, assist in inhalation)External Intercostals (Elevate rib cage, assist in inhalation)Internal Intercostals (Depress, assist in exhalation)Diaphragm (Prime mover of inhalation)When you breathe out, or exhale, your diaphragm relaxes and moves upward into the chest cavity.The intercostal muscles between the ribs also relax to reduce the space in the chest cavity.
inhalation
The chest cavity increases in size during inhalation
the intercostal muscles contract
keep your chest stable, you dont need to raise your chest
In order to make space for lungs part of bone swells on chest....
The diaphragm is normally dome-shaped & arches up into the chest cavity, but during inhalation it contracts & flattens down, and at the same time, the intercostal muscles expand the ribcage; these two actions increase the chest capacity by up to 75%.
When you breath in, it becomes larger. Conversely, it is smaller when you exhale.
contraction of diaphragm and chest muscles
There are several muscles involved in breathing:Scalenes (Elevate rib cage, assist in inhalation)Sternocleidomastoid (Elevate Rib Cage, assist in inhalation)Pectoralis minor (Elevate Rib Cage, assist in inhalation)External Intercostals (Elevate rib cage, assist in inhalation)Internal Intercostals (Depress, assist in exhalation)Diaphragm (Prime mover of inhalation)When you breathe out, or exhale, your diaphragm relaxes and moves upward into the chest cavity.The intercostal muscles between the ribs also relax to reduce the space in the chest cavity.
Inhalation
During inhalation, oxygen is taken into the lungs. Her death was due to the inhalation of toxic chemicals.
a region of low pressure is created inside the lungs when compared to the outside atmosphere .When air is drawn inside air pressure is increased.
Inhalation.