Larynx Flashcards
What are the 3 main spaces of larynx
vestibule
ventricle
infraglottic cavity
What are the 3 nonparied cartilages associated with the larynx?
epiglottic cartilage
thyroid cartilage
cricoid cartilage
What are (most) of the cartilages of the larynx composed of?
hyaline cartilage*
*except for epiglottic cartilage = elastic cartilage
____ cartilage looks like a fan
epiglottic cartilage
The epiglottic cartilage is held to the thyroid via ____
Thyroepiglottic ligament
What are the 2 components of the epiglottic cartilage?
anterior part - faces hyoid bone
posterior part - does not face hyoid bone
What is the largest cartilage of the larynx?
thyroid cartilage
What are the components of the thyroid cartilage?
Bilaterally - lamina, inferior horn, superior horn, laryngeal prominence
The laryngeal prominence of the ___ cartilage is also called ___
thyroid cartilage
adam’s apple
The superior horn of the thyroid cartilage holds it to the ____
hyoid bone
The inferior horn of the thyroid cartilage holds it to the ____
cricoid cartilage
___ cartilage is called a “backwards class ring”. Why?
cricoid cartilage
broad posterior lamina
narrow anterior arches
What are the 2 components of the cricoid cartilage?
What are the 2 facet points of the crcioid cartilage?
lamina (broad poster)
arches (narrow anterior)
both facets are on the lamina!
superiorly: facet for arytenoid cartilage
laterally: facet for thyroid cartilage (cricothyroid joint)
The lateral lamina facet of the cricoid cartilage articulates with the _____
inferior horn of the thyroid cartilage
The cricothyroid joint is a ____ joint
synovial joint
has a capsule!
What are the 3 paired cartilages of the larynx?
arytenoid cartilage
corniculate cartilage
cuneoform cartilage
Which cartilage is the “birthday hat”?
arytenoid cartilage
pyramidal on top of the cricoid cartilage
What are the components of the arytenoid cartilage?
apex = superior
muscular process = posterior for muscular attachment
vocal process = anterior for true vocal cord attachment
The ___ cartilage is the pom pom on the birthday hat
corniculate cartilage
The cuneoform cartilage is ____
embedded in a ligament
If the cuneoform cartilage is covered in mucous membrane, it is called ___
cuneoform tubercle
What are the extrinsic ligaments of the larynx?
thyrohyoid membrane
cricotrachael ligament
hypoepiglotitic ligament
Describe extrinsic ligamente genreally
large, broad, continue laterally
Thyrohyoid membrane holds the ___ to the ___
thyroid cartilage to hyoid bone
Where are the ligaments within the thyrohyoid membrane found?
2 laterally
1 median
2 lateral thyrohyoid ligaments hold ___
hold up the superior horn of the hyoid bone
1 medial thyrohyoid ligament hold ___
hold the thyroid notch up to the hyoid bone in midline
The cricotrachael ligament holds the __ to __
cricoid cartilage to the trachae (1st trachael ring)
The hyoepiglottic ligament holds the __ to __
epiglottis to the body of hyoid bone
What are the intrinsic ligaments?
quadrangular membrane (aryepiglotic ligament and vestibular ligament)
cricothyroid ligament (vocal ligament and medial cricothyroid ligament)