気管
anatomical
anatomy
background
biological
biology
body
breath
breathe
bronchi
bronchial
bronchus
crosssection
design
diagram
drawing
education
epiglottis
esophagus
graphic
health
healthy
human
illustration
internal
isolated
larynx
medical
medicine
model
muscle
neck
normal
oesophagus
organ
organism
oxygen
pharynx
physiology
pneumonia
pulmonary
respiratory
science
scientific
structure
system
thorax
throat
trachea