how is the respiratory system divided structurally
upper: superior to larynx, lower: inferior to larynx
conducting zone
structures that conduct air into the lungs. warm, filter, moisten air
respiratory zone
site of gas exchange. respiratory bronchioles, alveolar ducts, alveoli
what do the conchae and meatuses of the nose do
increase surface area and prevent dehydration
olfactory epi
contains olfactory receptors, sup nasal conchae
respiratory epi
inf to olfactory epi, pseudostratified ciliated columnar, secretes mucous to moisten air and trap particles, cilia move trapped particles to be removed
nasopharynx contains
post of nasal cavity is soft palete, paryngeal tonsils
oropharynx contains
hyoid bone section of soft palete, palatine and lingual tonsils
laryngopharynx contains
hyoid for esophagus/larynx
larynx
connects laryngopharynx to tranchea, 9 pieces of cartilage, connected via intrinsic muscles, extrinsic muscles connect cartilages to throat structures
thyroid cartilage
forms ant wall of larynx, larger in males due to testosterone, connected to hyoid bone by thyrohyoid membrane
epiglottis
elastic cartilage, inf portion connected to rim of thyroid cartilage, sup portion free, covers glottis when swallowing
vestibular folds
false vocal cords, sup, rima vestibuli: space between vestibular folds
vocal folds
true vocal cords, inf, rima glottidis: space between
trachealis muscle
within the open portion of c shaped cartilages
tracheotomy
done when obstruction is above the larynx, incision below cricoid cartilage
primary bronchi
right and left bronchus, one to each lung, right is more vertical and shorter, incomplete rings of cartilage
secondary bronchi
lobar chonchi, split into each lobe
tertiary bronchi
segmental bronchi, further divide within each lobe
bronchioles
little to no cartilage, thick sm
terminal bronchioles
represent the end of conducting zone
lungs
surrounded by pleural membrane, parietal pleura: outer, visceral pleura: inner
rename
hrdcorhrvivor's
version from
2017-05-13 05:26
