Components of Respiratory System categories correct answers airway, lungs or
respiratory muscles
Upper Respiratory System correct answers Includes nose, nasal cavity, pharynx and
larynx
Lower Respiratory System correct answers Includes trachea, lungs, and bronchial tree
Airway correct answers nose, nasal cavity, mouth, pharynx, larynx, trachea, bronchi,
bronchial network
Airway is lined with? correct answers cilia that trap microbes and debris and sweep
them back toward the mouth
Lungs correct answers structures that house the bronchi and bronchial network which
extend into the lungs and terminate in millions of alveoli (air sacs)
Right lung correct answers has three lobes
Left lung correct answers has two lobes leaving room for the heart on the left side of
the body
Lungs are surrounded by? correct answers pleural membrane which reduces friction
between surfaces when breathing
Respiratory muscles correct answers Includes diaphragm and intercostal muscles
Diaphragm correct answers dome-shaped muscle that separates the thoracic and
abdominal cavities
Intercostal muscles correct answers located between the ribs
Main function of respiratory system correct answers is to supply the body with oxygen
and get rid of carbon dioxide
The exchange of gases occurs in? correct answers millions of tiny alveoli which are
surrounded by blood capillaries
Respiratory system also does what? correct answers Filters air and air is warmed,
moistened and filtered as it passes through the nasal passages before it reaches the
lungs.