Larynx Flashcards
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Name of the laryngeal prominance
adam’s apple
structures that are located lateral
(3) Muscles
(1) Nerve
(2) vessels
(1) gland
sternohyoid
thyrohyoid
stylohyoid omohyoid
vagus N
CCA
IJV
thyroid
Structures that are posterior to the larynx
prevertebral M
(3) functions of te larynx
- organ of volcalization or phonation
- air passage
- sphincter- prevent food from entering
The extent of the larynx is btw the _________ and ______
root of the tongue
trachea
In the adult, the larynx extends btw which vertebral levels
C3-C6
The larynx communicates superior with the _____
laryngopharynx
inferior: trachea
The larynx communicates inferior with the _____
trachea
sup: laryngopharynx
what two types of cartilage does the larynx have?
hyaline
elastic
Name the unpaired cartilages in the larynx
thyroid
cricoid
epiglottis
Name the paired cartilage in the larynx
arytenoid
corniculates
cuneiforms
What is the largest unpaired larynx cartiage
thyroid
The thyroid cartilage is ____ cartilage and is located under the ____ bone
hyaline cartilage
hyoid bone
The thyroid cartilage is made up of two ____ that meet in the middle
laminae
Name of the superior and inferior extensions of the thyroid cartilage
superior horn
inferior horn
The ____ prominance is formed by the two laminae coming together
laryngeal prominance
The ____ notch is formed at the connection of the two laryngeal laminae
thyroid notch
____is the attachment of the sternothyroid and thyrohyoid
oblique line
_____ joint is btw the inferior cornu of the thyroid cartilage and lateral side of the cricoid cartilage
cricothyroid
Name the four attachments of the thyroid cartilage
- cricoid - cricothyroid lig
- epiglottis - thyroepiglottic lig
- vocal process of the arytenoid - vocal lig
- hyoid bone- thryohyoid lig
vocal lig attached thryoid cartilage to ____
vocal process of arytenoid
Thyroid cartilage is attached to the arytenoid via the ___ lig
vocal lig
Hyoid is at ___ vert level
C3
thyroid is at ___ vert level
C4&C5
Cricoid is at ___ vert level
C6
2 articulations of the cricoid
cricothyroid
cricoarytenoid
Cricoid is attached to the thyroid via ___ lig
cricothyroid lig
Cricoid is attached to the trachea via ___ lig
cricotracheal lig
___ cartilage is attached to the apex of the arytenoid
corniculate cartilage
paired
arytenoid is ____ shaped
pyramid
cricoid is ___ cartilage
hyaline
- as we get older the cartilage ossifies
arytenoid cartilage is located on the lateral side of the superior border of the ____
cricoid lamina
Name the 2 process of the arytenoid
vocal and muscular
2 articulations of the arytenoid
cricoid lamina
corniculate cartilage
____ is attached to the ___ by the quadrangular membrane
arytenoid cartilage to the epiglottis
the aryepiglottis lig runs on top of the ____ membrane
quadrangular
The epiglottis projects upward behind the ___ and ___
tongue
hyoid bone
the stalk of the epiglottis attaches to the back of the ____
thyroid cartilage
Define deglutition
the act of swallowing
during deglutition, the epiglottis action is _____
bend back over the laryngeal inlet
(4) attachments of epiglottis
thyroid
hyoid - hyoepiglottic lig
arytenoid -aryepiglottic lig
tongue - glossoepiglottic fold
the medial and lateral glossoepiglottic folds make a little ditch called the ____ where pills and fish bones can get trapped in
epiglottic vallecula
The epiglottic vallecula is mae up of the ____
medial and lateral glossoepiglottic folds
where fish and pills can get stuck
corniculate is made up of ____ cartilage
elastic
___ are enclosed in the posterior parts of the aryepiglottic fold
corniculate cartilage
____ cartilage is located btw the tips of the greater horn of the hyoid and superior horn of the thyroid cartilage
triticeal cartilage
cuneform cartilage is ___ cartilage
elastic
____ are rod like bodies in the aryepiglottic fold
cuneform cartilage
anterior to the corniculate cartilage
name the 3 extrinsic membranes of the larynx
thyroid membrane
cricotracheal lig
hyoepiglottic lig
____ membrane is btw the epiglottis and arytenoid cartilage
quadrangular membrane
inf border forms the vocal lig
the inferior border of the quadrangular membrane forms the ____ lig
vocal lig
name the three intrinsic lig / membrane
quadrangular membrane
cricothyroid lig
thyroepiglottic lig
Vocal lig + the lateral cricothyroid lig form the _____
conus elasticus
The upper edge of the lateral cricothyroid lig is the ____ lig
vocal
What lig forms the vocal lig
cricothyroid lig
three strcutures that make up the arytenoid cartilage
vocal process
apex
muscular process
boundaries of the laryngeal inlet
- epiglottis (ant)
- aryepiglottic folds (lat)
- mm btw the arytenoid cartilages (post)
the laryngeal inlet is also known as the ___
aditus “opening”
___: space btw the inlet and the vestibular folds
vestible
the vestible is the space in btw the ___ & ___
inlet and vestibular folds
____ : the space btw the vestibular folds and the vocal folds
ventricles
The ventricle is the space btw the ____folds and ___ folds
vestibular folds
vocal folds
____ contains mucous glands to lubricate the vocal folds
saccule
anterior extension of the ventricle
____ is an anterior extension of the ventricle
saccule
___: the space btw the vocal folds and inferior boder of the cricoid cartilage
infraglottic cavity
infraglottic cavity is the space btw the ___ folds and the inferior border of the ___ cartilage
vocal folds
cricoid cartilage
____ the space btw the R/L vestibular folds
rima vestibuli
____ the space btw the R/L vocal folds
rima glottidis
Which is more superior : rima glottidis or rima vestibuli
rima vestibuli
Which suprahyoid M elevate the larynx
digastric
stylohyoid
mylohyoid
geniohyoid
also the:
stylopharyngeus
salpingopharyngeus
palatopharngeus
name the 3 depressors of the larynx
sternothyroid
sternohyoid
omohyoid
N to the stylohyoid M
facial
N to the stylopharyngeal M
glossopharyngeal N
Which intrinsic laryngeal M has both its origin and insertion on the arytenoid
transverse and oblique arytenoid
Which two intrinsic laryngeal M have its origin on the thryoid lamina
thyroarytenoid
vocalis
Which intrinsic laryngeal M has its inserition onto the thyroid
cricothyroid
intrinsic laryngeal M that acts as the chief tensor of the vocal lig
cricothyroid
intrinsic laryngeal M that abducts the vocal lig
osterior cricoarytenoid
intrinsic laryngeal M that closes the rima glottidis
transverse and oblique arytenoid
thyroarytenoid
intrinsic laryngeal M that adducts the vocal lig
lateral cricoarytenoid
what two actions does the thyroarytenoid do?
slackens vocal folds and closes rima glottidis
intrinsic laryngeal M adjusts the tension of the vocal lig
vocalis
the rima glottidis ____ during breathing
opens
The rima glottidis ____ during talking
closes
high pitch voice causes ____ on the vocal lig
tension
the external laryngeal N runs with the ____ art
superior thyroid artery
c.c. if the doc cuts the _____ on accident when doing surgery to the larynxthe patient will not be able to produce high pitch sounds
external laryngeal N
low pitch sounds are make from contraction of the ____ M which relaxes the vocal lig
thyroartenoid M
During force respiration the vocal folds are ____
completely abducted
the vocal folds are almost completely closed during ____
phonation
- the air coming out causes vibrations on the folds
What three structures modify the sound that comes out when we speak
tongue
soft palate
mouth
internal laryngeal N is a branch of the ____ N
superior laryngeal N of the vagus
___ N supplies laryngeal mucosa down to the level of the vocal folds
internal laryngeal N
from vocal folds up
internal laryngeal N supplies the ____ down to the level of the ___
laryngeal mucosa
vocal folds
____N supplies the laryngeal mucosa below the level of the vocal folds
recurrent laryngeal N
the recurrent laryngeal nerves supply the ____ below the level of the ___
laryngeal mucosa
vocal folds
What are the two sensory intervations to the larynx
internal laryngeal N (above vocal folds)
recurrent laryngeal N (below vocal folds)
What are the two motor supplies to the larynx
external laryngeal nerve
recurrent laryngeal N
External laryngeal N is a branch of the ______
superior laryngeal N of the vagus
-cricothyroid M
what nerve supplies the cricothyroid M
external laryngeal N
___ N supplies all of the intrinsic laryngeal M except the cricothyroid M
recurrent laryngeal N
The internal laryngeal N is ____
sensory
above vocal fold
the recurrent laryngeal N is ___
sensory and motor
S- below vocal fold
External laryngeal N is ____
motor (cricothyroid)