Larynx Flashcards
What are the 3 functions of the larynx
air pathway
Switching mechanism (Air/food)
voice production
What are the nine cartilages that make up the larynx
Thyroid Cricoid Epiglottis Arytenoid (2) Cuneiform (2) Corniculate (2)
Insertion of sternothyroid muscle
oblique line of thyroid cartilage
Separates origins of thyrohyoid muscle and inferior
constrictor muscle
Oblique line of thyroid carilage
V-shaped on thyroid cartilage
Superior Thyroid notch
Shallow indentation of the thyroid cartilage
Inferior thyroid notch
Rotation and gliding in of the thyroid cartilage results in what
a change in length of the vocal folds
The only complete ring of the airway
Cricoid cartilage
Has a broad posterior lamina
cricoid cartlage
Has a narrow anterior arch
Cricoid cartilage
Provides flexibility to the epiglottis
Epiglottic cartilage
The epiglottic cartilage is attached to the hyoid bone via _____
hypoepiglottic ligament
What make the false vocal fold
vestibular ligament
Tapered inferior end of the epiglottic cartilage
stalk of the epiglottis
_____ forms shallow ball-and-socket articulation with upper border
of the cricoid lamina
Base of the arytenoid
____ attaches to arytenoid fold
apex of the arytenoid
The arytenoid cartilage moves in what three directions
Superior-inferior axis
Medial lateral excursion
anterior posterior excursion
pivot along ______results in
abduction and adduction of true vocal cords
superior-inferior axis (twisting)
________ results in adduction and
abduction of entire cartilage.
medial-lateral excursion (sliding)
Arytenoid attachment for the vocal ligament
Vocal Process
Arytenoid attachment for the posterior and lateral cricoarytenoid muscles
Muscular process
Attached to the apices of the arytenoid cartilages
Corniculate cartilage
Give substance to the vocal folds
Cuneiform Cartilage
Extend from the junction of the laminae of the
thyroid cartilage anteriorly to the vocal process of
the arytenoid cartilage posteriorly
Vocal L.
Thickened medial most border of _____
is the vocal ligament
conus elasticus
thick elastic tissue (medial free edge
of conus elasticus; attach the arytenoid cartilages to
the thyroid cartilage)
Vocal ligament
of very fine muscle fibers; the most
medial portion of thyroarytenoid muscle
Vocalis muscle
lateral recesses
between the vocal and vestibular folds
Laryngeal ventricles
–inferior cavity of the larynx
between the vocal folds and inferior border of the
cricoid cartilage
Infraglottic cavity
recesses extending laterally
from the middle part of the laryngeal cavity
between vestibular and vocal folds
Laryngeal ventricle
between laryngeal inlet and
the vestibular folds
Laryngeal vestibule
inferior cavity of the larynx
between the vocal folds and inferior border of the
cricoid cartilage
Infraglottic cavity
aperture between the vocal folds
rima glottis
