nasal cavity
nasal conchae
soft palate
uvula
pharynx:
    naso, oro, laryngo 
auditory tube in nasopharynx
larynx
hyoid bone
cartilage:
    cricoid & thyroid
​epiglottis/glottis
vocal folds
trachea with cartilage

  Lower Tract

bronchi:
  primary/secondary/tertiary 
bronchioles
lung w/
     lobes (superior, middle, inferior)
     fissures (horizontal & oblique)
     apex
     cardiac notch
diaphragm
mediastinum

frontal, ethmoid, sphenoid sinuses

  Upper Tract

  Lab: Respiratory System 

There is a thin area of muscle at the back of the
     Triangle of Auscultation
so it is easier to hear respiratory sounds at this location with a stethoscope. To facilitate hearing respiratory sounds, (since the triangle of auscultation is covered by the scapula bone), you would ask patients to fold their arms across their chest as they bent forward.