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Glossary of Respiratory-1

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Pulmonary Ventilation
Breathing; bringing air into and out of lungs
Inspiration
Inhalation; the act of drwing air into the lungs
Expiration
Exhaling; expelling air from the lungs into the atmosphere
External respiration
Exchange of gases between lungs and blood
Internal (tissue) respiration
Exchange of gases between tissue fluid and cells
Upper respiratory system includes:
Nose, pharynx, and associated sturctures
Lower respiratory system includes:
Larynx, trachea, bronchi, and lungs
Conducting parts
Consist of cavities, tubes, and passages outside and inside the lungs
Nose, pharynx, larynx, trachea, and bronchi:
(function)
Filter warm and moisten air and conduct into lungs
Respiratory portion
Tissue in lungs where gas exchange occurs
Respiratory bronchioles, alveolar ducts, and aveoli:
(function)
Gas exchange between air and blood

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