Respiratory System Respiratory System The respiratory object consists of a series of tubes that air passes on its journey from the nostrils. The nostrils disrupt into the pinched cavities, which argon lined with moist eiliateol epithelium. Whether one breathes through with(predicate) the nose or the mouth, a breath of air enters the automobile trunk and flows through the nasal bone cavity to the pharynx (throat). The back of the nasal cavities is continuous with the throat region, or pharying. Air flows through the voice box (voice box) and into the trachea, which divides into two bronchi, one going to each lung.
The trachea and bronchi ar supported by C-shaped rings of cartilage that prevent the tubes from collapsing as air is drawn into the body. The bronchi divide into thousands of bronchioles. The smallest bronchioles end in clusters of microscopic air sacs or alveoli. From them, oxygen diffuses into the blood of the multitude of capillaries adopt each air sac. At the same time, carbon dio...If you chance to get a full essay, order it on our website:
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