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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.
Diaphragm is the the prime mover for the inhalation. It is a dome shaped partition between the thorax and the abdomen. It gets some what flat as it contracts. The volume of the thorax increases. There by the air is pulled in the thorax.
There are several muscles that are responsible for breathing. They are the Diaphragm, the external intercostal muscle, and the internal intercostal muscle.
The diaphragm is below the lungs and the heart and above the stomach,and the intestines,therefore the diaphragm must be pushed down or in a convex position to the heart.
if volume of a gas increases temperature also increases
intercostal muscle
In the body, the diaphragm is a curved sheet of smooth muscle which separates the thorax from the abdomen. When it contracts, the diaphragm flattens, which INCREASES the volume of the THORAX, which then EXPANDS the lungs. Contracting the diaphragm therefore is associated with breathing IN, NOT OUT. In Birth Control, a diaphragm keeps sperm from getting to your cervix and uterus and making you pregnant.
In the body, the diaphragm is a curved sheet of smooth muscle which separates the thorax from the abdomen. When it contracts, the diaphragm flattens, which INCREASES the volume of the THORAX, which then EXPANDS the lungs. Contracting the diaphragm therefore is associated with breathing IN, NOT OUT. In Birth Control, a diaphragm keeps sperm from getting to your cervix and uterus and making you pregnant.
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.
The intercostal muscles between the ribs control the movement of the thorax and rib cage. The diaphragm, which separates the thorax from the abdomen controls the volume of the thorax. As the intercostal muscles contract the rib cage is drawn upwards and out, the diaphragm flattens so the volume inside the thorax increases therefore, air is drawn in.
Diaphragm is the the prime mover for the inhalation. It is a dome shaped partition between the thorax and the abdomen. It gets some what flat as it contracts. The volume of the thorax increases. There by the air is pulled in the thorax.
they expand, or get biggerThe contraction of your intercostal muscles causes the rib cage to move up and out, thus increasing the volume of the thoracic cavity, decreasing the pressure, so air is forced in.If you're asking for GCSE, the term you need to use is the "ribs move up and out". Don't forget the contraction of the diaphragm, as it flattens it aids the increase in volume of the thoracic cavity.
the diaphram
There are several muscles that are responsible for breathing. They are the Diaphragm, the external intercostal muscle, and the internal intercostal muscle.
As your diaphragm expands, the pressure in your thoracic cavity decreases. Air rushes into the partial vacuum, and you inhale.
Respiration. The diaphragm is a sheet of muscle separating the chest cavity from the abdominal cavity which, when relaxed, domes upwards; on breathing in the diaphragm contracts & flattens down, thus increasing the capacity of the chest, and causing air to be drawn into the lungs.When the diaphragm contracts that causes the volume of the lungs to increase. When the lung volume increases, the air pressure drops causing air to come in from outside (inhaling). When the diaphragm relaxes, the process is reversed. Lung volume decreases, air pressure builds, and air is forced out (exhaling).
The ribs lower during exhalation. During forced exhalation, the quadratus lumborum muscle stabilizes the 12th rib while the internal intercostal muscles and transverse thoracic muscle pull the ribs downward forcefully to decrease the volume of the thorax.