respiratory.ppt - HUMAN RESPIRATORY SYTEM Ms RESHMA PARVEEN THE HUMAN RESPIRATORY SYSTEM The respiratory system is a biological system comprised of

respiratory.ppt - HUMAN RESPIRATORY SYTEM Ms RESHMA PARVEEN...

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HUMAN RESPIRATORY SYTEM Ms. RESHMA PARVEEN
The respiratory system is a biological system comprised of several organs that facilitate the inhalation and exhalation of oxygen and carbon dioxide in living organisms. THE HUMAN RESPIRATORY SYSTEM
FUNCTIONS OF RESPIRATORY SYSTEM Air Distributor Gas exchanger Filters, warms, and humidifies air Influences speech Allows for sense of smell
COMPONENTS OF RESPIRATORY SYSTEM Nose and nasal cavity Mouth Pharynx Larynx Trachea Bronchi and Bronchioles Lungs Muscles of respiration
THE HUMAN RESPIRATORY SYSTEM
Organs in the Respiratory System STRUCTURE FUNCTION nose / nasal cavity warms, moistens, & filters air as it is inhaled pharynx (throat) passageway for air, leads to trachea larynx the voice box, where vocal chords are located trachea (windpipe) keeps the windpipe "open" trachea is lined with fine hairs called cilia which filter air before it reaches the lungs bronchi two branches at the end of the trachea, each lead to a lung bronchioles a network of smaller branches leading from the bronchi into the lung tissue & ultimately to air sacs alveoli the functional respiratory units in the lung where gases are exchanged
DIVISIONS OF RESPIRATORY SYSTEM Upper respiratory tract (outside thorax ) Nose Nasal Cavity Sinuses Pharynx Larynx
Lower respiratory tract (within thorax) Trachea Bronchial Tree Lungs

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