The deep thorax muscles are the deep muscles of the thorax that promotes the inspiratory phase of breathing. When breathing the diaphragm contracts, producing a negative pressure, which forces are into the lungs.
the diaphragm is the muscle used to assist in breathing and phernic nerve innervates the diaphragm
sternocleidomastoid,scaleni,anterior serrati
external intercostal
The diaphragm.
diaphragm
diaphragm
The deep muscle of the thorax that promote the inspiratory phase of breathing is the external intercostal. It is a muscle that originates from the lower border of a rib.
The deep muscles of the thorax that promote inhaling are known as the diaphragm muscles. These are the muscles that are activated when a person has good posture and takes a deep breath.
breathing
The muscle that separates the thorax and abdomen and aids in breathing is called the diaphragm. It is a dome-shaped muscle that contracts and relaxes to regulate the volume of the thoracic cavity, allowing for inhalation and exhalation.
There are several muscles that are responsible for breathing. They are the Diaphragm, the external intercostal muscle, and the internal intercostal muscle.
it used in breathing
The Diaphragm - a membrane of muscle and tendon, flexes to reduce ambient pressure in the thorax, and cause the lungs to compensate by drawing in air. Exhalation works in reverse.
The muscle that separates the chest from the abdomen and forms the floor of the thorax is called the diaphragm.
trapezius
intercostal muscle
There could be many answers!But I think you are referring to the DIAPHRAGM (the main muscle of breathing) which separates the THORAX (your 'chest') from your ABDOMEN (your 'stomach' area)
the volume of breathing in increases and when breathing out it decreases, the pressure in Inhaling decreases and the Exhaling increases.