Upper airway and thorax L1 Flashcards
upper airways=
nose
nasal cavity
paranasal sinuses
pharynx
lower respiratory tract=
larynx
trachea
bronchi
lungs
conducting tissues of the respiratory tract job =
to cleanse, warm and humidify air
respiratory tissue job=
actual site of gas exchange
what is the nose dorsum
the bridge of the nose
what are the alae of the nose
lateral surface of the nose (wings)
what cartilage is the flaring part of the nose
alar cartilage
nares=
the nostrils
the anterior nasal apertures=
nostrils
the posterior nasal apertures=
choanae
roof of the nose=
base of the skull
floor of the nose=
hard palate
what divides the nasal cavity
the nasal septum
epithelial linning of the nasal cavity
psuedostratified ciliated columnar epithelium
what does the roof of the nasal cavity contain
olfactory mucosa
what are three bony shelves projecting medially from the lateral wall of the nasal cavity
conchae (turbinates)
what are meatuses
broad openings inferior to conchae
functions of the nasal cavity (4)
Provides airway
filters, humidifies and warms air
resonating chamber for speech
olfaction
name 4 paranasal sinuses
maxillary
ethmoid
frontal
sphenoid
drainage of the frontal sinus
lateral wall of the middle meatus
drainage of anterior ethmoidal sinus
ethmoidal infundibulum
drainage of middle ethmoidal sinus
ethmoidal bulba
drainage of posterior ethmoidal sinus
lateral wall of the superior nasal meatus
drainage of maxillary sinus
middle meatus via the semilunar hiatus
drainage of the sphenoidal sinus
sphenoethmoidal sinus
2 other openings into the nasal cavity
nasolacrimal duct
eustachian tube
eustachian tube links
nasal cavity to middle ear
major blood supply to the nose
sphenopalatine artery
what is a nose bleed called
epistaxis
what lies in littles area and is formed from the anastomosis of 5 big arteries
Kiesalbach’s plexus
pharynx superior/inferior boundaries
base of the skull to the cricoid cartilage
what muscles comprise the pharynx
superior, middle and inferior constrictor
what is the innervation of the nasopharynx
maxillary nerve
what is the innervation of the oropharynx
glossopharyngeal nerve
what is the innervation of the laryngopharynx
vagus nerve
range of nasopharynx
base of the skull to uvula and soft palate
range of oropharynx
soft palate to epiglottis
range of laryngopharynx
epiglottis to cricoid
most muscles of the pharynx are innervated by
vagus nerve
stylopharyngeus is innervated by
glossopharyngeal nerve
blood supply of the pharynx=
branches of the external carotid
unpaired cartilage of the larynx=
epiglottis
cricoid
thyroid
paired cartilage of the larynx=
arytenoid
cuneiform
corniculate
laryngeal folds made up of
vocal folds
vestibular folds
which folds are superior
vestibular folds
which are the true vocal cords
vocal cords
what do the vocal cords do
abducted
adducted
relaxed and tensed
to control pitch of sound created
what do the vestibular folds do
fixed folds that protect the larynx
space inbetween the vocal folds
rima glottidis
where does the trachea bifurcate
T4/T5
which bronchus is wider and more vertical
right
trachea postion relative to oesophagus
anterior