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Write an essay on respiration in human beings. |
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Answer» S: either of two external openings of the nasal cavity in vertebrates that admit air to the lungs and smells to the olfactory nerves.NASAL CAVITY: The nasal cavity (or nasal fossa) is a large air filled space above and behind the nose in the middle of the face. Eachcavity is the continuation of one of the two nostrils.PHARYNX:the membrane-lined cavity behind the nose and mouth, connecting them to the oesophagus.LARYNX:the hollow muscular organ FORMING an air passage to the lungs and holding the vocal cords in humans and other mammals; the voice box.TRACHEA:a large membranous tube reinforced by rings of cartilage, extending from the larynx to the bronchial tubes and conveying air to and from the lungs; the windpipe.BRONCHUS:any of the major air passages of the lungs which DIVERGE from the windpipe.BRONCHIOLES:any of the minute branches into which a bronchus divides.ALVEOLI:any of the many tiny air sacs of the lungs which allow for RAPID GASEOUS exchange. |
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