Respiratory System Anatomy

external nares

middle (nasal conchae)

inferior (nasal conchae)

nasopharynx

cartilage of auditory tube

pharyngeal tonsil (adenoids)

oropharynx

palatine tonsils

uvula

laryngopharynx

larynx

orange

thyroid cartilage

laryngeal prominence

peak point

cricoid cartilage

arytenoid cartilages

corniculate cartilages

cuneiform cartilage

epiglottic cartilage

intrinsic ligaments

vocal ligaments and vocal folds (true vocal cords)

vestibular ligaments and vestibular folds (false vocal cords)

trachea

teal

tracheal cartilages

anular ligaments

bronchial tree

blue

main (primary) bronchi

pink

lobar (secondary) bronchi

teal

segmental (tertiary) bronchi

orange

respiratory bronchioles

alveolar ducts and saccules

base (lungs)

apex (lungs)

hilum (lungs)

superior lobe (right)

horizontal fissure (right)

line

middle lobe (right)

oblique fissure (right)

line

inferior lobe (right)

superior lobe (left)

oblique fissure (left)

line (green)

inferior lobe (left)

cardiac impression (left)

cardiac notch (left)

line (pink)

diaphragm

inspiration

external intercostals

inspiration

internal (innermost) intercostals

expiration