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Real-time magnetic resonance imaging of the human thorax during breathing X-ray video of a female American alligator while breathing. Breathing (spiration [1] or ventilation) is the rhythmical process of moving air into and out of the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
Example(s) pachy-thick Greek πᾰχῠ́ς (pakhús), thick, large, stout pachyderma, pachyderm -pagus: Indicates conjoined twins, with the first part denoting the organs fused Greek πάγος (págos), fixed, set, fastened xiphopagus, parapagus dicephalus, craniopagus parasiticus: palpebr-of or pertaining to the eyelid (uncommon as a root)
A primary pulmonary lobule is the part of the lung distal to the respiratory bronchiole. [29] Thus, it includes the alveolar ducts, sacs, and alveoli but not the respiratory bronchioles. [30] The unit described as the secondary pulmonary lobule is the lobule most referred to as the pulmonary lobule or respiratory lobule.
The three-part appearance of many insect bodies and the two-part appearance of spiders is a result of this grouping. [21] There are no external signs of segmentation in mites . [ 17 ] Arthropods also have two body elements that are not part of this serially repeated pattern of segments, an ocular somite at the front, where the mouth and eyes ...
Inhalation of air, as part of the cycle of breathing, is a vital process for all human life. The process is autonomic (though there are exceptions in some disease states) and does not need conscious control or effort. However, breathing can be consciously controlled or interrupted (within limits).
The respiratory system (also respiratory apparatus, ventilatory system) is a biological system consisting of specific organs and structures used for gas exchange in animals and plants. The anatomy and physiology that make this happen varies greatly, depending on the size of the organism, the environment in which it lives and its evolutionary ...
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It is the part of a breathing apparatus that fits against the user's face and through which the breathing gas passes during inhalation and exhalation. It may be sealed around the perimeter to prevent leakage to or from the environment, or may include a port to combine gas supply from the environment with gas supplied from the breathing apparatus.