Respiratory system

external nares

nasal cavity

nasal septum

superior, middle, inferior nasal conchae

pharynx

nasopharynx

opening of the pharyngotympanic tube

oropharynx

laryngopharynx (hypo pharynx)

larynx

epiglottis

hyoepiglottic ligament

arytenoid cartilage

corniculate cartilage

vocal folds (true vocal cords)

vestibular folds (false vocal cords)

Hyoid bone

thyrohyoid ligament (membrane)

thyroid cartilage

cricothyroid ligament

cricoid cartilage

cricotracheal ligament

trachea

cartilaginous rings (tracheal cartilage, c-rings)

carina

primary bronchi

secondary bronchus

tertiary bronchus

terminal bronchiole

respiratory bronchiole

alveolar sac

pulmonary capillaries al

alveolus

type 1 alveolar cell

superior lobe

middle lobe (right lung only)

inferior lobe

horizontal fissure (right lung only)

oblique fissure

hilum

visceral pleura

parietal pleura

external intercostals

sternocleidomastoid

scalenes

pectoralis minor

serrates anterior

internal intercostals

transverses thoracic

abdominal muscles

pseudostratified columnar epithelium

cilia

goblet cells

hyaline cartilage

Tidal volume (TV)

Inspiratory reserve volume (IRV)

expiratory reserve volume (ERV)

vital capacity (VC)