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diaphragm (anatomy)

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Diaphragm (anatomy)


In mammals, a thin muscular sheet separating the thorax from the abdomen. It is attached by way of the ribs at either side and the breastbone and backbone, and a central tendon. Arching upwards against the heart and lungs, the diaphragm is important in the mechanics of breathing. It contracts at each inhalation, moving downwards to increase the volume of the chest cavity, and relaxes at exhalation.

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adenosine triphosphate
aerobic
aerobic respiration
alveolus
anaerobic respiration
ATP
breathing
bronchiole
bronchus
carbon dioxide
cilia
diaphragm (anatomy)
diffusion
energy (biology)
epiglottis
gas exchange
glucose
intercostal
lactic acid
lung
mucus
nicotine
oxygen
oxygen debt
respiration
respiratory tract
smoking (tobacco)
thorax
trachea
ventilation
water

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