Describe How The Design Of Respiratory System Facilitates...

DESCRIBE HOW THE DESIGN OF RESPIRATORY SYSTEM FACILITATES GAS EXCHANGE? SID: Process of respiration involves supply of oxygen to blood cells (oxygen intake) and excretion of carbon dioxide and other waste (CO2 excretion). Purified blood is carried to all parts of the body by blood vessels in order to achieve gaseous exchange at cell level. This process is carried out through a complex system called Respiratory System. Organs which comprise respiratory system include mouth, nasal passage, glottis, trachea, larynx, pharynx, bronchi, bronchioles, alveoli and last but not the least lungs. In the following lines, we’ll discuss in details how the structures of respiratory system accomplish exchange of gases. The upper respiratory tract comprises those organs that bring the air in and lower respiratory tract comprises those parts that process the air. Upper respiratory tract starts from the nose and the mouth. They enable the air to enter through external nares (nostrils). Behind the nostrils there are little shelves of bone called nasal conchae (superior, middle and inferior). They divide the nasal cavity into thin passages called meatuses. (Jahangir, 2015). Surface areas of nasal conchae creates turbulence, forcing the air to get bounced in the nasal cavity and increase the surface area of these cavities, thus allowing the mucus to trap the dirt, bacteria and enable only warm, clean and moist air as it passes down to the lungs. (Rogers, 2012) Figure 1. (Abpischools.org.uk,Show MoreRelatedHow The Design Of Respiratory System Facilitates Gas Exchange?1366 Words   |  6 Pages ­Ã‚ ­DESCRIBE HOW THE DESIGN OF RESPIRATORY SYSTEM FACILITATES GAS EXCHANGE? The most vital phenomenon of life is respiration. Without respiration life is impossible. Respiratory System, consisting of a number of organs in human body which is taking the function of respiration. These organs include mouth, nasal passage, glottis, trachea, larynx, pharynx, bronchi, bronchioles, alveoli and last but not the least the LUNGS. Other supporting orangs are ribs, intercostal muscles, diagram and cilia. 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