describe the respiratory tree including regions of the conducting and respiratory regions

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Expert Solution

The respiratory tree is responsible for passage of air into and out of the lungs and consists of the conducting zone and the respiratory zone.
CONDUCTING ZONE: contains trachea, bronchi, bronchioles and terminal bronchioles.
Trachea : trachea or windpipe is a made up of cartilage and extends from the larynx to the bronchi. It helps conduct the air from larynx to the bronchi.
Bronchus : the trachea divides at the carina into right and left bronchus. They help in conduction of air from trachea into the lungs. They further divide into lovar and segmental bronchi.
Bronchioles : The segmental bronchi further divide into subsegmental bronchi which further divides into bronchioles. They are made up of ciliated cuboidal epithelium and a layer of smooth muscle and supply a pulmonary lobule.
Terminal bronchioles : bronchioles further divides into terminal brochioles which wnds into respiratory bronchioles.
RESPIRATORY ZONE : contains respiratory bronchioles, alveolar ducts, alveolat sacs.
Respiratory bronchioles : respiratory bronchioles marks the begining of respiratory zone. They conduct the air into alveolar duct.
Alveolar duct : distal parts of respiratory bronchioles ends into tiny alveolar ducts. Alveolar ducts pass the air from respiratory bronchioles to the alveolar sac.
Alveolar sacs : alveolar sacs contain pulmonary alveoli which are the site of gas exchange.

Sydney Mullin answered 1 year ago

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