exam 1 Flashcards
the most important laryngeal cartilage, which is paired and located on the upper surface of the cricoid cartilage
arytenoids
what does the superior cornu and inferior cornu of the thyroid articulate with
superior- hyodid some individuals the triticeal found between superior cornu and hyoid
inferior-cricoid
what are the cricothyroid and thyrovocalis muscles
glottal tensors
how many layers does the vocal folds have
5
what is the 5th layer of tissue which makes up the bulk of vocal folds
thyroartenoid (thyrovocalis and thyromuscularis) muscle
what is the origin and insertion of the stylohyoid and what is its function
hoid and laryngeal elevator; styloid process of temporal bone and connects to the hyoid bone.
what is the next layer after the squamous epithelium
superficial lamina propria
vocal ligament
intermediate lamina propria nad deep lamina propria;; each vocal fold has a vocal ligament
laryngeal depressors
sternohyoid, omohyoid, sternothyroid, thyrohyoid
lateral cricoarytenoid, transvers arytenoid oblique arytenoid, what are they?
adductor muscles
this means they haveorigin and insertion in the larynx
intrinsic muscles
what does the digastricus anterior and posterior do?
hyoid and laryngeal elevators
what is the posterior cricoarytenoid muscle (function)?
abductor
what do the intrinsic muscles of the larynx do?
fine adjustments to the larynx, opening closing tensing vocal cords
what do the extrinsic laryngeal muscles do?
major adjustments to the larynx; elevating and depressing it.
theses cartilage attaches to the upper margins of the arytenoid cartilages
corniculate cartilages
squamous epithelium
most superficial layer of vocal fold tissue.
next layer of the vocal folds after the superficial lamina propria
intermediate lamina propria
next layer of the vocal folds after the intermediate lamina propria
deep lamina propria.
what is the laryngeal vestibule and why is it important?
it is the opening in the lateral wall of the larynx, between the vestibular fold above and the vocal folds below
what is the glottis?
space between the vocal folds
what is the supraglottis?
the section between the inferior boundary of the hyoid bone, epiglottis, and the vestibular folds, aka the false vocal folds.
what is the subglottic?
vocal folds to inferior of the cricoid.
what are the aryepiglottic folds and where are they located?
between the arytenoid cartilage and lateral margin of the epiglottis on each side. lateral borders of the larynx important for protecting the air way and swallowing.=
they extend
between the arytenoid cartilage and the lateral margin of the epiglottis on each side
and make up the lateral borders of the larynx. important for protecting the airway and swallowing.
the largest cartilage, made of two plates, joined by an angle (unpaired)
thyroid
this means they have one attachment on the laryngeal cartilage and the other on a non laryngeal structure
extrinisic laryngeal muscles.
