The vacuum created by down-ward movement of the diaphram.
Diaphragm
bronchi (singular bronchus) --Allison
The lungs expand drawing in air through the mouth or the nose.
The nose, pharynx, trachea, and bronchi.
pharynx . . . Laryx. . . Trachea . . . Bronchi . . Lobar bronchi. . . Segmentel bronchi. . Bronchioles . . Terminal bronchioles.. . Respiratory bronchioles. . Alveolar duct .. . Alveoli
No. It is warmed to near body temperature as it passes through the nose, throat, and bronchi.
the nasal passage
Air passes from the environment into the nose/mouth, through the nasopharynx and oropharynx, into the glottis, trachea, bronchi and its bifurcations, and into the alveoli of the lungs.
There are many different paths of air. They are the nose, nasa conchae, pharynx, glottis, larynx, trachea, primary bronchi, secondary bronchi, tertiary bronchi, bronchioles, terminal bronchioles, respiratory bronchioles, alveolar ducts, alceolar sacs, and alveoli.
The upper respiratory system (where air enters and exits the body) is composed of the nasal cavity, pharynx, and larynx. The lower respiratory system (where the air moves to be processed) consists of the trachea, the bronchi, and the lungs. So the answer is either the nose and mouth, or the trachea, depending on how you meant the question.
Two air passages which allow air to enter the body are the cilia and aveoli !!!
After air passes through the larynx, it enters your windpipe, or trachea. The trachea cleans the air again and channels it into the lungs through two large tubes called bronchi. The bronchi divide into smaller tubes and eventually lead to air sacs called alveoli. It is in the alveoli that oxygen moves into your blood and carbon dioxide moves out.
nose traps some of the dust particles