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Oxygen enters through the nose but is involved with the Respiratory System.
The respiratory system.
Air enters the the respiratory tract through either the nose or mouth.
The function of the respiratory system is to provide the body with oxygen. Oxygen enters the body through the respiratory system and is carried in blood throughout the body.
Yes
lungs
it consists of two parts
ciliated mucous membranes
the trachea
the lungs is the basic unit structure of the human respiratory system
Through nose.
it is bronchioles