Laryngeal Cartilages
Name the process as a result of vibrating vocal folds?
Phonation or voicing.
What is the thyrohyoid membrane?
Connection between larynx (thyroid) to hyoid bone
Define Infrahyoid and Suprahyoid
Infrahyoid- Depresses larynx
Suprahyoid- Elevates larynx
What region is below the Vocal Folds?
Subglottic region
List the 5 layers of Vocal Fold Tissue
1) Squamous epithelium
2) Superficial layer of lamina propria
3) Intermediate layer of lamina propria
4) Deep layer of lamina propria
5) Thyroarytenoid muscles
"U" shaped floating bone is called?
Hyoid bone.
Which ligament connects the larynx to the tracheal rings?
Cricotracheal ligament
Intrinsic connects ________
Extrinsic connects ________
Intrinsic connects parts of the larynx to each other
Extrinsic connects the larynx to structures outside of the larynx
What is the Vestibule?
Entryway to the larynx
Which 2 tissues make up the mucosal lining?
Name the Laryngeal cartilages? Paired and unpaired
3 unpaired 3 paired
cricoid arytenoid
thyroid corniculate
epiglottis cuneiform
What is the upper border of the Quadrangular Membrane that connects the lateral borders of the epiglottis to the arytenoids called?
Aryepiglottic folds
Name the 4 categories of intrinsic laryngeal muscles
Adductors, abductors, tensors and relaxers
What is another name for the Ventricular Folds?
False Vocal Cords
Which 2 tissues make up the Vocal Ligament?
Intermediate layer of lamina propria and deep layer of lamina propria
Which ligaments hold together the cricothyroid joint
ceratocricoid ligaments
Which ligament connects the thyroid to the vocal processes of the arytenoids?
Vocal Ligament
Name the origin and insertion of the oblique arytenoid
• Origin: Posterior surface and lateral margin of arytenoid
• Insertion: Apex of contralateral arytenoid
What is superior to the vestibule? (2)
Epiglottis and Aryepiglottic folds
Which layer/tissue is responsible for:
a. most vibration during phonation
b. stretching of VF
c. giving strength and stability to VF
a. Superficial layer of lamina propria
b. Intermediate layer of lamina propria
c. Deep layer of lamina propria
Which 2 cartilages connect to the Cricoid through the 4 facets
Lower cornua of thyroid cartilage
Arytenoids cartilage
Which membrane connects the epiglottis, thyroid, arytenoids, and corniculates, and thickens at the bottom becoming the Ventricular Ligament?
Quadrangular Membrane
Name the origin, insertion and action of posterior cricoarytenoid
Origin: Posterior surface of cricoid
Insertion: Muscular process of arytenoid
Action: Rotate arytenoids laterally. Separates, opens and tenses vocal folds
Name the 4 boundaries of the glottis
Vocal folds
Arytenoids
Anterior commissure
Posterior commissure
The Thyroarytenoid muscles go from which cartilage to which cartilage?
From the Thyroid cartilage to the Arytenoid cartilage