Functional Anatomy of Respiration and Phonation: Cartilages and Framework Flashcards
9 cartilages of the laryngeal skeleton
- Thyroid cartilage
- Cricoid cartilage
- Epiglottis
- 2 x Arytenoid cartilage
- 2 x Corniculate cartilage
- 2 x Cuneiform cartilage
What cartilage is the thyroid cartilage made of?
Hyaline cartilage
What are the inferior horns of the thyroid cartilage attached to?
Cricoid cartilage
What do the superior horns of the thyroid cartilage attach to and via which ligaments?
- Hyoid bone
- Lateral thyrohyoid ligaments
What attaches the thyroid cartilage to the hyoid bone?
Thyrohyoid membrane
Specific attachments of thyrohyoid membrane
- Superior border of lamina of thyroid cartilage (inferior)
- Inferior border of hyoid bone (superior)
What cartilage is the cricoid cartilage made of?
Hyaline cartilage
For which structures does the cricoid cartilage contain facets for?
- Inferior horn of thyroid cartilage
- Arytenoid cartilages
Which ligament connects the cricoid cartilage and first tracheal ring?
Cricotracheal ligament
What does the epiglottis attach to, in which direction, and via which ligament?
- Thyroid cartilage
- Anteriorly
- Thyro-epiglottic ligament
Processes of the arytenoid cartilage
- Muscular process
- Vocal process
Where do the corniculate cartilages attach to the arytenoids?
Apex of arytenoid
What does conus elasticus attach to and in which direction?
- Superior border of cricoid cartilage
- Inferiorly
What is the free, thickened edge of conus elasticus?
Vocal ligament
Which direction do the corniculate cartilages face?
Medially
Where are the cuneiform cartilages found?
Suspended in connective tissue superior to corniculates
What does the quadrangular membrane attach to and in which direction?
- Edge of epiglottis
- Superiorly
What is the free, thickened edge of the quadrangular membrane?
Vestibular ligament
Which ligament attaches the epiglottis to the hyoid?
Hyo-epiglottic ligament
What is the gap found horizontally between the vocal folds called?
Rima glottidis
What is the gap found horizontally between the vestibular folds called?
Rima vestibuli
When is a vocal/vestibular ligament called a fold?
When it is combined with the surrounding mucosa
What is the area of the larynx enclosed between the vocal and vestibular folds?
Glottis
What is the area of the larynx found above the vestibular folds?
Vestibule or supraglottic space
What is the area of the larynx found under the vocal folds?
Infraglottic space
What are the spaces found laterally between the vestibular and vocal folds?
Laryngeal ventricles
Which nerve supplies mucosa below the vocal folds?
Recurrent laryngeal nerve
Which nerve supplies mucosa above the vocal folds?
Internal branch of superior laryngeal nerve
