UNIT 4: Membranes Flashcards
extrinsic membranes of the larynx
connect laryngeal cartilages w adjacent structures for external support
intrinsic membranes of the larynx
connect laryngeal structures w each other for internal support
what covers the membranes of the larynx
mucous - most superficial layer
the thyrohyoid membrane is
a fibroelastic sheet
thyrohyoid membrane connects to _____ of the ____ to _____ of _____
inferior border of the hyoid bone to superior border of thyroid cartilage
there is an opening on the thyrohyoid membrane on each side for the
super laryngeal nerve iSLN of vagus
thyrohyoid membrane has 3 ligaments
1 medial
2 lateral
3 extrinsic membranes of the larynx
thryohyoid membrane
hyoepiglottic ligament
cricotracheal membrane
hyoepiglottic ligament is a ______ ligament connecting the corpus of the ____ and anterior surface of the _____
midline
hyoid
epiglottis
the hyoepiglottic ligament allows for
epiglottic deflection when relaxed
cricotracheal membrane connects the
lower border of cricoid w upper border of 1st tracheal ring
2 intrinsic membranes of the larynx
quadrangular
conus elasticus
the quadrangular membrane connects the _______ of the ____ to the apex and medial surface of _____
lateral margins of epiglottis
medial surface of arytenoids
quadrangular membrane has inferior edges which are the _________ (part of the ____ VFs)
ventricular/vestibular ligaments
false
quadrangular membrane’s superior edges are
deep structure of aryepiglottic folds
aryepiglottic folds are formed by
deep structure and mucous mem
conus elasticus connects
cricoid, thyroid, arytenoud cartilages
conus elasticus extends from
internal surface of cricoid
conus elasticus has 2 components
cricothryoid ligament and membrane
superior edges of conus elasticus are the
vocal ligaments - deep structure of TVFs
cricothyroid ligament is
a medial thickening in conus elasticus
cricothyroid ligaments connects
superior border of cricoid arch w inferior border of thyroid at its angle
cricothyroid membrane connects
cricothyroid ligament to the vocal processes of arytenoids
free superior edges of the cricothyroid membrane form the
vocal ligaments - part of TVFs
2 types of laryngeal joints
cricoarytenoid ligaments
ceratocricoid ligaments
cricoarytenoid ligaments are _____ and ______, they limit the
posterior and anterior
limit anterior and posterior sliding of arytenoids
ceratocricoid ligaments are ____, ____ and _____…. hold the ….
anterior, lateral, posterior
hold the inferior cornu of thyroid w/i cricothyroid joint
mucous membrane extends over the inner and outer portions of the _____ membrane and inner surface of ______
quadrangular mem
conus elasticus
aryepiglottic folds contain
aryepiglottic muscles, cuneiform cart, and quadrangular mem
space bw the aryepiglottic folds and lateral pharyngeal walls =
lateral channels and pyriform sinuses
aryepiglottic folds surround the
entrance to the larynx
ventricular folds are the
false vocal folds
the ventricular folds contain the
ventricular ligaments
the ventricular folds sit ____ and ____ to the TVFs
superior and parallel
TVFs contain the
vocal ligaments and additional layers of CT and muscle
2 main cavities of the larynx
vestibule and ventricle
vestibule is the_____, wide at the ____ and narrowed at the ______ folds
entryway to the larynx
wide at the entrances and narrowed at the ventricular folds
lateral walls of the vestibule are comprised of the
aryepiglottic folds
ventricle is a
vertical space bw the TVFs and FVFs
an extended portion of the ventricle is the _____ - contains …..
saccule - contains mucous secreting glands which keep the VFs moist