Phonation Muscles and Other Structures Flashcards
Thyroid cartilage has both ___ and ___ horns
inferior; superior
Most inferior cartilage in larynx
cricoid
Arytenoids on the superior surface of the ____ cartilage
cricoid
The ____ cartilages sit on top of the arytenoid cartilages
Corniculate
goes from inferior portion of hyoid bone to superior portion of thyroid body
thyrohyoid membrane
goes from superior horn of thyroid cartilage to ends of hyoid bone
Lateral thyrohyoid ligament
runs down center of hyoid bone to near the thyroid notch
Median thyrohyoid ligament
this ligament connects epiglottis to hyoid bone
hypoepiglottic
connect inferior-most portion of epiglottis to inner surface of thyroid cartilage
Thryoepiglottic ligament
these ligaments connect the epiglottis to root of tongue
Lateral and median glossoepiglottic ligaments
This ligament attaches the trachea to the larynx
Cricotracheal ligament
This group of ligaments connect larynx cartilages and form support structure for cavity of larynx and vocal folds
intrinsic ligaments
These four things make up the fribroelastic membrane
quadrangular membranes
aryepiglottic folds
conus elasticus
vocal ligament
where is the thyroid gland in relation to the larynx?
hugging its side and inferior to it
false vocal folds made from
quadrangular membranes and vestibular ligament
the __ __ start at the epiglottis and thyroid, then go down in a cone shape at attach near the arytenoids
quadrangular membranes
cuneiform cartilage is inside the ___ ___
quadrangular membranes
The vocal ligament is made up of these two VF layers
ILP + DLP
what are the five layers of the vocal folds from superficial to deep?
1) squamous epithelium
2) SLP
3) ILP
4) DLP
5) TA muscle
this layer of the VF is made of epithelial tissue and helps with fluid retention
squamous epithelium
these two VF layers are cross-layered and made of elastin fibers
SLP and ILP
this layer of the VF is made of collagen fibers. Its role is to support the upper layers
DLP
in VF layers, what does SLP stand for?
superficial lamina propria
in VF layers, what does ILP stand for?
intermediate lamina propria
in VF layers, what does DLP stand for?
deep lamina propria
these two layers of the VF constitute the vocal ligament
ILP and DLP
what is the function of the vocal ligament?
stiffness and support to vocal folds
Some authors refer to superficial epithelium, SLP and ILP as ___ to VF, and DLP and TA as ___ of vocal folds
cover; body
surgical removal of larynx called
laryngectomy
opening of the trachea for alternate breathing, created surgically
tracheostoma
space between false VF called
rima vestibuli
cavity btwn tongue and epiglottis
valleculae
space btwn false VF and true VF
Laryngeal ventricle/sinus
what kind of joint is the cricothyroid joint?
pivot
in anatomy, what is a cornu?
horn
the pharyngeal recess, which is important for swallowing, is made up of these two structures
Pyriform sinuses + valleculae
the epiglottis is attached to these two superior structures
hyoid and tongue
what are four features of an infant’s larynx that are different from an adult’s
HIGHER - Larynx sits higher
EPI - Epiglottis visible over back of tongue
SOFTER - Laryngeal cartilage softer
SOFTEE - ⅓ size of adult larynx
what does the cricothyroid joint do?
Allows thyroid to rock down → stretches VF
what do the cricoarytenoid joints do?
Can rock, glide and rotate (maybe) for adduction and abduction
lateral cricoarytenoid muscle
lateral cricoarytenoids
transverse arytenoid
oblique arytenoid
posterior cricoarytenoid
posterior cricoarytenoid
cricothyroid
medial - rectal
lateral - oblique
cricothyroid
thyromuscularis
the TA muscle is made up from these two
thyrovocalis (medial) and thyromuscularlis (lateral)
thyrovocalis (medial)
this part of the VF is not always present. We’re pretty sure it’s a relaxer but it’s stillll a mysterrrry
superior TA
aryepiglottic
thyroepiglottic
diagastric - post
diagastric - ant
stylohyoid
mylohyoid
hyoglossus
geniohyoid
genioglossus
thyropharyngeus of inf. pharyngeal constrictor
sternothyroid
sternohyoid
omohyoid - superior
omohyoid inferior
thyrohyoid
suprahyoid muscles also called
strap muscles
Extrinsic muscles above hyoid = __, below = ___
suprahyoid; infrahyoid